[2526] | 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | import unittest, os |
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| 4 | from math import sqrt, pi |
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| 5 | |
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[3514] | 6 | from anuga.config import g, epsilon |
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[2526] | 7 | from Numeric import allclose, array, zeros, ones, Float, take |
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[3514] | 8 | from anuga.utilities.numerical_tools import mean |
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[2526] | 9 | |
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[3563] | 10 | from shallow_water_domain import * |
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[2526] | 11 | |
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| 12 | |
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| 13 | |
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| 14 | #Variable windfield implemented using functions |
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| 15 | def speed(t,x,y): |
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| 16 | """Large speeds halfway between center and edges |
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| 17 | Low speeds at center and edges |
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| 18 | """ |
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| 19 | |
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| 20 | from math import sqrt, exp, cos, pi |
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| 21 | |
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| 22 | x = array(x) |
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| 23 | y = array(y) |
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| 24 | |
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| 25 | N = len(x) |
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| 26 | s = 0*x #New array |
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| 27 | |
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| 28 | for k in range(N): |
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| 29 | |
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| 30 | r = sqrt(x[k]**2 + y[k]**2) |
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| 31 | |
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| 32 | factor = exp( -(r-0.15)**2 ) |
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| 33 | |
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| 34 | s[k] = 4000 * factor * (cos(t*2*pi/150) + 2) |
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| 35 | |
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| 36 | return s |
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| 37 | |
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| 38 | |
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| 39 | def scalar_func(t,x,y): |
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| 40 | """Function that returns a scalar. |
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| 41 | Used to test error message when Numeric array is expected |
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| 42 | """ |
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| 43 | |
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| 44 | return 17.7 |
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| 45 | |
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| 46 | |
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| 47 | def angle(t,x,y): |
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| 48 | """Rotating field |
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| 49 | """ |
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| 50 | from math import sqrt, atan, pi |
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| 51 | |
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| 52 | x = array(x) |
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| 53 | y = array(y) |
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| 54 | |
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| 55 | N = len(x) |
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| 56 | a = 0*x #New array |
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| 57 | |
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| 58 | for k in range(N): |
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| 59 | r = sqrt(x[k]**2 + y[k]**2) |
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| 60 | |
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| 61 | angle = atan(y[k]/x[k]) |
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| 62 | |
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| 63 | if x[k] < 0: |
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| 64 | angle+=pi #atan in ]-pi/2; pi/2[ |
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| 65 | |
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| 66 | #Take normal direction |
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| 67 | angle -= pi/2 |
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| 68 | |
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| 69 | #Ensure positive radians |
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| 70 | if angle < 0: |
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| 71 | angle += 2*pi |
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| 72 | |
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| 73 | a[k] = angle/pi*180 |
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| 74 | |
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| 75 | return a |
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| 76 | |
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| 77 | |
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| 78 | class Test_Shallow_Water(unittest.TestCase): |
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| 79 | def setUp(self): |
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| 80 | pass |
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| 81 | |
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| 82 | def tearDown(self): |
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| 83 | pass |
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| 84 | |
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| 85 | def test_rotate(self): |
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| 86 | normal = array([0.0,-1.0]) |
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| 87 | |
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| 88 | q = array([1.0,2.0,3.0]) |
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| 89 | |
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| 90 | r = rotate(q, normal, direction = 1) |
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| 91 | assert r[0] == 1 |
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| 92 | assert r[1] == -3 |
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| 93 | assert r[2] == 2 |
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| 94 | |
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| 95 | w = rotate(r, normal, direction = -1) |
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| 96 | assert allclose(w, q) |
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| 97 | |
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| 98 | #Check error check |
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| 99 | try: |
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| 100 | rotate(r, array([1,1,1]) ) |
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| 101 | except: |
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| 102 | pass |
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| 103 | else: |
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| 104 | raise 'Should have raised an exception' |
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| 105 | |
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| 106 | def test_flux_zero_case(self): |
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| 107 | ql = zeros( 3, Float ) |
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| 108 | qr = zeros( 3, Float ) |
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| 109 | normal = zeros( 2, Float ) |
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| 110 | zl = zr = 0. |
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| 111 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 112 | |
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| 113 | assert allclose(flux, [0,0,0]) |
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| 114 | assert max_speed == 0. |
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| 115 | |
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| 116 | def test_flux_constants(self): |
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| 117 | w = 2.0 |
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| 118 | |
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| 119 | normal = array([1.,0]) |
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| 120 | ql = array([w, 0, 0]) |
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| 121 | qr = array([w, 0, 0]) |
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| 122 | zl = zr = 0. |
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| 123 | h = w - (zl+zr)/2 |
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| 124 | |
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| 125 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 126 | |
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| 127 | assert allclose(flux, [0., 0.5*g*h**2, 0.]) |
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| 128 | assert max_speed == sqrt(g*h) |
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| 129 | |
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| 130 | #def test_flux_slope(self): |
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| 131 | # #FIXME: TODO |
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| 132 | # w = 2.0 |
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| 133 | # |
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| 134 | # normal = array([1.,0]) |
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| 135 | # ql = array([w, 0, 0]) |
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| 136 | # qr = array([w, 0, 0]) |
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| 137 | # zl = zr = 0. |
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| 138 | # h = w - (zl+zr)/2 |
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| 139 | # |
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| 140 | # flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 141 | # |
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| 142 | # assert allclose(flux, [0., 0.5*g*h**2, 0.]) |
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| 143 | # assert max_speed == sqrt(g*h) |
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| 144 | |
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| 145 | |
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| 146 | def test_flux1(self): |
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[3560] | 147 | #Use data from previous version of abstract_2d_finite_volumes |
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[2526] | 148 | normal = array([1.,0]) |
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| 149 | ql = array([-0.2, 2, 3]) |
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| 150 | qr = array([-0.2, 2, 3]) |
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| 151 | zl = zr = -0.5 |
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| 152 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 153 | |
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| 154 | assert allclose(flux, [2.,13.77433333, 20.]) |
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| 155 | assert allclose(max_speed, 8.38130948661) |
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| 156 | |
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| 157 | |
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| 158 | def test_flux2(self): |
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[3560] | 159 | #Use data from previous version of abstract_2d_finite_volumes |
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[2526] | 160 | normal = array([0., -1.]) |
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| 161 | ql = array([-0.075, 2, 3]) |
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| 162 | qr = array([-0.075, 2, 3]) |
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| 163 | zl = zr = -0.375 |
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| 164 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 165 | |
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| 166 | assert allclose(flux, [-3.,-20.0, -30.441]) |
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| 167 | assert allclose(max_speed, 11.7146428199) |
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| 168 | |
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| 169 | def test_flux3(self): |
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[3560] | 170 | #Use data from previous version of abstract_2d_finite_volumes |
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[2526] | 171 | normal = array([-sqrt(2)/2, sqrt(2)/2]) |
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| 172 | ql = array([-0.075, 2, 3]) |
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| 173 | qr = array([-0.075, 2, 3]) |
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| 174 | zl = zr = -0.375 |
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| 175 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 176 | |
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| 177 | assert allclose(flux, [sqrt(2)/2, 4.40221112, 7.3829019]) |
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| 178 | assert allclose(max_speed, 4.0716654239) |
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| 179 | |
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| 180 | def test_flux4(self): |
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[3560] | 181 | #Use data from previous version of abstract_2d_finite_volumes |
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[2526] | 182 | normal = array([-sqrt(2)/2, sqrt(2)/2]) |
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| 183 | ql = array([-0.34319278, 0.10254161, 0.07273855]) |
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| 184 | qr = array([-0.30683287, 0.1071986, 0.05930515]) |
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| 185 | zl = zr = -0.375 |
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| 186 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 187 | |
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| 188 | assert allclose(flux, [-0.04072676, -0.07096636, -0.01604364]) |
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| 189 | assert allclose(max_speed, 1.31414103233) |
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| 190 | |
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| 191 | def test_sw_domain_simple(self): |
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| 192 | a = [0.0, 0.0] |
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| 193 | b = [0.0, 2.0] |
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| 194 | c = [2.0,0.0] |
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| 195 | d = [0.0, 4.0] |
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| 196 | e = [2.0, 2.0] |
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| 197 | f = [4.0,0.0] |
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| 198 | |
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| 199 | points = [a, b, c, d, e, f] |
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| 200 | #bac, bce, ecf, dbe, daf, dae |
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| 201 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
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| 202 | |
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[3563] | 203 | |
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| 204 | #from anuga.abstract_2d_finite_volumes.domain import Domain as Generic_domain |
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| 205 | #msg = 'The class %s is not a subclass of the generic domain class %s'\ |
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| 206 | # %(DomainClass, Domain) |
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| 207 | #assert issubclass(DomainClass, Domain), msg |
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| 208 | |
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[2526] | 209 | domain = Domain(points, vertices) |
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| 210 | domain.check_integrity() |
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| 211 | |
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| 212 | for name in ['stage', 'xmomentum', 'ymomentum', |
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| 213 | 'elevation', 'friction']: |
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| 214 | assert domain.quantities.has_key(name) |
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| 215 | |
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| 216 | |
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| 217 | assert domain.get_conserved_quantities(0, edge=1) == 0. |
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| 218 | |
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| 219 | |
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| 220 | def test_boundary_conditions(self): |
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| 221 | |
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| 222 | a = [0.0, 0.0] |
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| 223 | b = [0.0, 2.0] |
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| 224 | c = [2.0,0.0] |
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| 225 | d = [0.0, 4.0] |
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| 226 | e = [2.0, 2.0] |
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| 227 | f = [4.0,0.0] |
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| 228 | |
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| 229 | points = [a, b, c, d, e, f] |
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| 230 | #bac, bce, ecf, dbe |
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| 231 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
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| 232 | boundary = { (0, 0): 'Third', |
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| 233 | (0, 2): 'First', |
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| 234 | (2, 0): 'Second', |
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| 235 | (2, 1): 'Second', |
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| 236 | (3, 1): 'Second', |
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| 237 | (3, 2): 'Third'} |
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| 238 | |
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| 239 | |
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| 240 | domain = Domain(points, vertices, boundary) |
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| 241 | domain.check_integrity() |
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| 242 | |
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| 243 | |
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| 244 | domain.set_quantity('stage', [[1,2,3], [5,5,5], |
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| 245 | [0,0,9], [-6, 3, 3]]) |
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| 246 | |
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| 247 | domain.set_quantity('xmomentum', [[1,1,1], [2,2,2], |
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| 248 | [3,3,3], [4, 4, 4]]) |
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| 249 | |
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| 250 | domain.set_quantity('ymomentum', [[10,10,10], [20,20,20], |
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| 251 | [30,30,30], [40, 40, 40]]) |
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| 252 | |
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| 253 | |
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| 254 | D = Dirichlet_boundary([5,2,1]) |
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| 255 | T = Transmissive_boundary(domain) |
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| 256 | R = Reflective_boundary(domain) |
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| 257 | domain.set_boundary( {'First': D, 'Second': T, 'Third': R}) |
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| 258 | |
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| 259 | domain.update_boundary() |
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| 260 | |
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| 261 | #Stage |
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| 262 | assert domain.quantities['stage'].boundary_values[0] == 2.5 |
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| 263 | assert domain.quantities['stage'].boundary_values[0] ==\ |
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| 264 | domain.get_conserved_quantities(0, edge=0)[0] #Reflective (2.5) |
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| 265 | assert domain.quantities['stage'].boundary_values[1] == 5. #Dirichlet |
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| 266 | assert domain.quantities['stage'].boundary_values[2] ==\ |
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| 267 | domain.get_conserved_quantities(2, edge=0)[0] #Transmissive (4.5) |
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| 268 | assert domain.quantities['stage'].boundary_values[3] ==\ |
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| 269 | domain.get_conserved_quantities(2, edge=1)[0] #Transmissive (4.5) |
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| 270 | assert domain.quantities['stage'].boundary_values[4] ==\ |
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| 271 | domain.get_conserved_quantities(3, edge=1)[0] #Transmissive (-1.5) |
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| 272 | assert domain.quantities['stage'].boundary_values[5] ==\ |
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| 273 | domain.get_conserved_quantities(3, edge=2)[0] #Reflective (-1.5) |
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| 274 | |
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| 275 | #Xmomentum |
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| 276 | assert domain.quantities['xmomentum'].boundary_values[0] == 1.0 #Reflective |
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| 277 | assert domain.quantities['xmomentum'].boundary_values[1] == 2. #Dirichlet |
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| 278 | assert domain.quantities['xmomentum'].boundary_values[2] ==\ |
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| 279 | domain.get_conserved_quantities(2, edge=0)[1] #Transmissive |
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| 280 | assert domain.quantities['xmomentum'].boundary_values[3] ==\ |
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| 281 | domain.get_conserved_quantities(2, edge=1)[1] #Transmissive |
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| 282 | assert domain.quantities['xmomentum'].boundary_values[4] ==\ |
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| 283 | domain.get_conserved_quantities(3, edge=1)[1] #Transmissive |
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| 284 | assert domain.quantities['xmomentum'].boundary_values[5] == -4.0 #Reflective |
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| 285 | |
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| 286 | #Ymomentum |
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| 287 | assert domain.quantities['ymomentum'].boundary_values[0] == -10.0 #Reflective |
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| 288 | assert domain.quantities['ymomentum'].boundary_values[1] == 1. #Dirichlet |
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| 289 | assert domain.quantities['ymomentum'].boundary_values[2] == 30. #Transmissive |
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| 290 | assert domain.quantities['ymomentum'].boundary_values[3] == 30. #Transmissive |
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| 291 | assert domain.quantities['ymomentum'].boundary_values[4] == 40. #Transmissive |
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| 292 | assert domain.quantities['ymomentum'].boundary_values[5] == 40. #Reflective |
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| 293 | |
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| 294 | |
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| 295 | def test_boundary_conditionsII(self): |
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| 296 | |
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| 297 | a = [0.0, 0.0] |
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| 298 | b = [0.0, 2.0] |
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| 299 | c = [2.0,0.0] |
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| 300 | d = [0.0, 4.0] |
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| 301 | e = [2.0, 2.0] |
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| 302 | f = [4.0,0.0] |
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| 303 | |
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| 304 | points = [a, b, c, d, e, f] |
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| 305 | #bac, bce, ecf, dbe |
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| 306 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
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| 307 | boundary = { (0, 0): 'Third', |
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| 308 | (0, 2): 'First', |
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| 309 | (2, 0): 'Second', |
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| 310 | (2, 1): 'Second', |
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| 311 | (3, 1): 'Second', |
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| 312 | (3, 2): 'Third', |
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| 313 | (0, 1): 'Internal'} |
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| 314 | |
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| 315 | |
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| 316 | domain = Domain(points, vertices, boundary) |
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| 317 | domain.check_integrity() |
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| 318 | |
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| 319 | |
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| 320 | domain.set_quantity('stage', [[1,2,3], [5,5,5], |
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| 321 | [0,0,9], [-6, 3, 3]]) |
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| 322 | |
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| 323 | domain.set_quantity('xmomentum', [[1,1,1], [2,2,2], |
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| 324 | [3,3,3], [4, 4, 4]]) |
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| 325 | |
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| 326 | domain.set_quantity('ymomentum', [[10,10,10], [20,20,20], |
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| 327 | [30,30,30], [40, 40, 40]]) |
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| 328 | |
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| 329 | |
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| 330 | D = Dirichlet_boundary([5,2,1]) |
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| 331 | T = Transmissive_boundary(domain) |
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| 332 | R = Reflective_boundary(domain) |
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| 333 | domain.set_boundary( {'First': D, 'Second': T, |
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| 334 | 'Third': R, 'Internal': None}) |
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| 335 | |
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| 336 | domain.update_boundary() |
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| 337 | domain.check_integrity() |
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| 338 | |
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| 339 | |
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| 340 | def test_compute_fluxes0(self): |
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| 341 | #Do a full triangle and check that fluxes cancel out for |
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| 342 | #the constant stage case |
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| 343 | |
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| 344 | a = [0.0, 0.0] |
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| 345 | b = [0.0, 2.0] |
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| 346 | c = [2.0,0.0] |
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| 347 | d = [0.0, 4.0] |
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| 348 | e = [2.0, 2.0] |
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| 349 | f = [4.0,0.0] |
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| 350 | |
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| 351 | points = [a, b, c, d, e, f] |
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| 352 | #bac, bce, ecf, dbe |
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| 353 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
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| 354 | |
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| 355 | domain = Domain(points, vertices) |
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| 356 | domain.set_quantity('stage', [[2,2,2], [2,2,2], |
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| 357 | [2,2,2], [2,2,2]]) |
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| 358 | domain.check_integrity() |
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| 359 | |
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| 360 | assert allclose(domain.neighbours, [[-1,1,-1], [2,3,0], [-1,-1,1],[1,-1,-1]]) |
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| 361 | assert allclose(domain.neighbour_edges, [[-1,2,-1], [2,0,1], [-1,-1,0],[1,-1,-1]]) |
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| 362 | |
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| 363 | zl=zr=0. #Assume flat bed |
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| 364 | |
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| 365 | #Flux across right edge of volume 1 |
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| 366 | normal = domain.get_normal(1,0) |
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| 367 | ql = domain.get_conserved_quantities(vol_id=1, edge=0) |
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| 368 | qr = domain.get_conserved_quantities(vol_id=2, edge=2) |
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| 369 | flux0, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 370 | |
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| 371 | #Check that flux seen from other triangles is inverse |
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| 372 | tmp = qr; qr=ql; ql=tmp |
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| 373 | normal = domain.get_normal(2,2) |
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| 374 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 375 | assert allclose(flux + flux0, 0.) |
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| 376 | |
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| 377 | #Flux across upper edge of volume 1 |
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| 378 | normal = domain.get_normal(1,1) |
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| 379 | ql = domain.get_conserved_quantities(vol_id=1, edge=1) |
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| 380 | qr = domain.get_conserved_quantities(vol_id=3, edge=0) |
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| 381 | flux1, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 382 | |
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| 383 | #Check that flux seen from other triangles is inverse |
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| 384 | tmp = qr; qr=ql; ql=tmp |
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| 385 | normal = domain.get_normal(3,0) |
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| 386 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 387 | assert allclose(flux + flux1, 0.) |
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| 388 | |
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| 389 | #Flux across lower left hypotenuse of volume 1 |
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| 390 | normal = domain.get_normal(1,2) |
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| 391 | ql = domain.get_conserved_quantities(vol_id=1, edge=2) |
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| 392 | qr = domain.get_conserved_quantities(vol_id=0, edge=1) |
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| 393 | flux2, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 394 | |
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| 395 | #Check that flux seen from other triangles is inverse |
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| 396 | tmp = qr; qr=ql; ql=tmp |
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| 397 | normal = domain.get_normal(0,1) |
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| 398 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
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| 399 | assert allclose(flux + flux2, 0.) |
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| 400 | |
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| 401 | |
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| 402 | #Scale by edgelengths, add up anc check that total flux is zero |
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| 403 | e0 = domain.edgelengths[1, 0] |
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| 404 | e1 = domain.edgelengths[1, 1] |
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| 405 | e2 = domain.edgelengths[1, 2] |
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| 406 | |
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| 407 | assert allclose(e0*flux0+e1*flux1+e2*flux2, 0.) |
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| 408 | |
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| 409 | #Now check that compute_flux yields zeros as well |
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| 410 | domain.compute_fluxes() |
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| 411 | |
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| 412 | for name in ['stage', 'xmomentum', 'ymomentum']: |
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| 413 | #print name, domain.quantities[name].explicit_update |
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| 414 | assert allclose(domain.quantities[name].explicit_update[1], 0) |
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| 415 | |
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| 416 | |
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| 417 | |
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| 418 | def test_compute_fluxes1(self): |
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| 419 | #Use values from previous version |
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| 420 | |
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| 421 | a = [0.0, 0.0] |
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| 422 | b = [0.0, 2.0] |
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| 423 | c = [2.0,0.0] |
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| 424 | d = [0.0, 4.0] |
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| 425 | e = [2.0, 2.0] |
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| 426 | f = [4.0,0.0] |
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| 427 | |
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| 428 | points = [a, b, c, d, e, f] |
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| 429 | #bac, bce, ecf, dbe |
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| 430 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
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| 431 | |
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| 432 | domain = Domain(points, vertices) |
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| 433 | val0 = 2.+2.0/3 |
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| 434 | val1 = 4.+4.0/3 |
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| 435 | val2 = 8.+2.0/3 |
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| 436 | val3 = 2.+8.0/3 |
---|
| 437 | |
---|
| 438 | domain.set_quantity('stage', [[val0, val0, val0], [val1, val1, val1], |
---|
| 439 | [val2, val2, val2], [val3, val3, val3]]) |
---|
| 440 | domain.check_integrity() |
---|
| 441 | |
---|
| 442 | zl=zr=0. #Assume flat bed |
---|
| 443 | |
---|
| 444 | #Flux across right edge of volume 1 |
---|
[2730] | 445 | normal = domain.get_normal(1,0) #Get normal 0 of triangle 1 |
---|
| 446 | assert allclose(normal, [1, 0]) |
---|
| 447 | |
---|
[2526] | 448 | ql = domain.get_conserved_quantities(vol_id=1, edge=0) |
---|
[2730] | 449 | assert allclose(ql, [val1, 0, 0]) |
---|
| 450 | |
---|
[2526] | 451 | qr = domain.get_conserved_quantities(vol_id=2, edge=2) |
---|
[2730] | 452 | assert allclose(qr, [val2, 0, 0]) |
---|
| 453 | |
---|
[2526] | 454 | flux0, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
[2730] | 455 | |
---|
| 456 | #Flux across edge in the east direction (as per normal vector) |
---|
[2526] | 457 | assert allclose(flux0, [-15.3598804, 253.71111111, 0.]) |
---|
| 458 | assert allclose(max_speed, 9.21592824046) |
---|
| 459 | |
---|
| 460 | |
---|
[2730] | 461 | #Flux across edge in the west direction (opposite sign for xmomentum) |
---|
| 462 | normal_opposite = domain.get_normal(2,2) #Get normal 2 of triangle 2 |
---|
| 463 | assert allclose(normal_opposite, [-1, 0]) |
---|
| 464 | flux_opposite, max_speed = flux_function([-1, 0], ql, qr, zl, zr) |
---|
| 465 | assert allclose(flux_opposite, [-15.3598804, -253.71111111, 0.]) |
---|
| 466 | |
---|
| 467 | |
---|
[2526] | 468 | #Flux across upper edge of volume 1 |
---|
| 469 | normal = domain.get_normal(1,1) |
---|
| 470 | ql = domain.get_conserved_quantities(vol_id=1, edge=1) |
---|
| 471 | qr = domain.get_conserved_quantities(vol_id=3, edge=0) |
---|
| 472 | flux1, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
| 473 | assert allclose(flux1, [2.4098563, 0., 123.04444444]) |
---|
| 474 | assert allclose(max_speed, 7.22956891292) |
---|
| 475 | |
---|
| 476 | #Flux across lower left hypotenuse of volume 1 |
---|
| 477 | normal = domain.get_normal(1,2) |
---|
| 478 | ql = domain.get_conserved_quantities(vol_id=1, edge=2) |
---|
| 479 | qr = domain.get_conserved_quantities(vol_id=0, edge=1) |
---|
| 480 | flux2, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
| 481 | |
---|
| 482 | assert allclose(flux2, [9.63942522, -61.59685738, -61.59685738]) |
---|
| 483 | assert allclose(max_speed, 7.22956891292) |
---|
| 484 | |
---|
| 485 | #Scale, add up and check that compute_fluxes is correct for vol 1 |
---|
| 486 | e0 = domain.edgelengths[1, 0] |
---|
| 487 | e1 = domain.edgelengths[1, 1] |
---|
| 488 | e2 = domain.edgelengths[1, 2] |
---|
| 489 | |
---|
| 490 | total_flux = -(e0*flux0+e1*flux1+e2*flux2)/domain.areas[1] |
---|
| 491 | assert allclose(total_flux, [-0.68218178, -166.6, -35.93333333]) |
---|
| 492 | |
---|
| 493 | |
---|
| 494 | domain.compute_fluxes() |
---|
| 495 | |
---|
| 496 | #assert allclose(total_flux, domain.explicit_update[1,:]) |
---|
| 497 | for i, name in enumerate(['stage', 'xmomentum', 'ymomentum']): |
---|
| 498 | assert allclose(total_flux[i], |
---|
| 499 | domain.quantities[name].explicit_update[1]) |
---|
| 500 | |
---|
| 501 | #assert allclose(domain.explicit_update, [ |
---|
| 502 | # [0., -69.68888889, -69.68888889], |
---|
| 503 | # [-0.68218178, -166.6, -35.93333333], |
---|
| 504 | # [-111.77316251, 69.68888889, 0.], |
---|
| 505 | # [-35.68522449, 0., 69.68888889]]) |
---|
| 506 | |
---|
| 507 | assert allclose(domain.quantities['stage'].explicit_update, |
---|
| 508 | [0., -0.68218178, -111.77316251, -35.68522449]) |
---|
| 509 | assert allclose(domain.quantities['xmomentum'].explicit_update, |
---|
| 510 | [-69.68888889, -166.6, 69.68888889, 0]) |
---|
| 511 | assert allclose(domain.quantities['ymomentum'].explicit_update, |
---|
| 512 | [-69.68888889, -35.93333333, 0., 69.68888889]) |
---|
| 513 | |
---|
| 514 | |
---|
| 515 | #assert allclose(domain.quantities[name].explicit_update |
---|
| 516 | |
---|
| 517 | |
---|
| 518 | |
---|
| 519 | |
---|
| 520 | |
---|
| 521 | def test_compute_fluxes2(self): |
---|
| 522 | #Random values, incl momentum |
---|
| 523 | |
---|
| 524 | a = [0.0, 0.0] |
---|
| 525 | b = [0.0, 2.0] |
---|
| 526 | c = [2.0,0.0] |
---|
| 527 | d = [0.0, 4.0] |
---|
| 528 | e = [2.0, 2.0] |
---|
| 529 | f = [4.0,0.0] |
---|
| 530 | |
---|
| 531 | points = [a, b, c, d, e, f] |
---|
| 532 | #bac, bce, ecf, dbe |
---|
| 533 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 534 | |
---|
| 535 | domain = Domain(points, vertices) |
---|
| 536 | val0 = 2.+2.0/3 |
---|
| 537 | val1 = 4.+4.0/3 |
---|
| 538 | val2 = 8.+2.0/3 |
---|
| 539 | val3 = 2.+8.0/3 |
---|
| 540 | |
---|
| 541 | zl=zr=0 #Assume flat zero bed |
---|
| 542 | |
---|
| 543 | domain.set_quantity('elevation', zl*ones( (4,3) )) |
---|
| 544 | |
---|
| 545 | |
---|
| 546 | domain.set_quantity('stage', [[val0, val0-1, val0-2], |
---|
| 547 | [val1, val1+1, val1], |
---|
| 548 | [val2, val2-2, val2], |
---|
| 549 | [val3-0.5, val3, val3]]) |
---|
| 550 | |
---|
| 551 | domain.set_quantity('xmomentum', |
---|
| 552 | [[1, 2, 3], [3, 4, 5], |
---|
| 553 | [1, -1, 0], [0, -2, 2]]) |
---|
| 554 | |
---|
| 555 | domain.set_quantity('ymomentum', |
---|
| 556 | [[1, -1, 0], [0, -3, 2], |
---|
| 557 | [0, 1, 0], [-1, 2, 2]]) |
---|
| 558 | |
---|
| 559 | |
---|
| 560 | domain.check_integrity() |
---|
| 561 | |
---|
| 562 | |
---|
| 563 | |
---|
| 564 | #Flux across right edge of volume 1 |
---|
| 565 | normal = domain.get_normal(1,0) |
---|
| 566 | ql = domain.get_conserved_quantities(vol_id=1, edge=0) |
---|
| 567 | qr = domain.get_conserved_quantities(vol_id=2, edge=2) |
---|
| 568 | flux0, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
| 569 | |
---|
| 570 | #Flux across upper edge of volume 1 |
---|
| 571 | normal = domain.get_normal(1,1) |
---|
| 572 | ql = domain.get_conserved_quantities(vol_id=1, edge=1) |
---|
| 573 | qr = domain.get_conserved_quantities(vol_id=3, edge=0) |
---|
| 574 | flux1, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
| 575 | |
---|
| 576 | #Flux across lower left hypotenuse of volume 1 |
---|
| 577 | normal = domain.get_normal(1,2) |
---|
| 578 | ql = domain.get_conserved_quantities(vol_id=1, edge=2) |
---|
| 579 | qr = domain.get_conserved_quantities(vol_id=0, edge=1) |
---|
| 580 | flux2, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
| 581 | |
---|
| 582 | #Scale, add up and check that compute_fluxes is correct for vol 1 |
---|
| 583 | e0 = domain.edgelengths[1, 0] |
---|
| 584 | e1 = domain.edgelengths[1, 1] |
---|
| 585 | e2 = domain.edgelengths[1, 2] |
---|
| 586 | |
---|
| 587 | total_flux = -(e0*flux0+e1*flux1+e2*flux2)/domain.areas[1] |
---|
| 588 | |
---|
| 589 | |
---|
| 590 | domain.compute_fluxes() |
---|
| 591 | for i, name in enumerate(['stage', 'xmomentum', 'ymomentum']): |
---|
| 592 | assert allclose(total_flux[i], |
---|
| 593 | domain.quantities[name].explicit_update[1]) |
---|
| 594 | #assert allclose(total_flux, domain.explicit_update[1,:]) |
---|
| 595 | |
---|
| 596 | |
---|
| 597 | def test_compute_fluxes3(self): |
---|
| 598 | #Random values, incl momentum |
---|
| 599 | |
---|
| 600 | a = [0.0, 0.0] |
---|
| 601 | b = [0.0, 2.0] |
---|
| 602 | c = [2.0,0.0] |
---|
| 603 | d = [0.0, 4.0] |
---|
| 604 | e = [2.0, 2.0] |
---|
| 605 | f = [4.0,0.0] |
---|
| 606 | |
---|
| 607 | points = [a, b, c, d, e, f] |
---|
| 608 | #bac, bce, ecf, dbe |
---|
| 609 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 610 | |
---|
| 611 | domain = Domain(points, vertices) |
---|
| 612 | val0 = 2.+2.0/3 |
---|
| 613 | val1 = 4.+4.0/3 |
---|
| 614 | val2 = 8.+2.0/3 |
---|
| 615 | val3 = 2.+8.0/3 |
---|
| 616 | |
---|
| 617 | zl=zr=-3.75 #Assume constant bed (must be less than stage) |
---|
| 618 | domain.set_quantity('elevation', zl*ones( (4,3) )) |
---|
| 619 | |
---|
| 620 | |
---|
| 621 | domain.set_quantity('stage', [[val0, val0-1, val0-2], |
---|
| 622 | [val1, val1+1, val1], |
---|
| 623 | [val2, val2-2, val2], |
---|
| 624 | [val3-0.5, val3, val3]]) |
---|
| 625 | |
---|
| 626 | domain.set_quantity('xmomentum', |
---|
| 627 | [[1, 2, 3], [3, 4, 5], |
---|
| 628 | [1, -1, 0], [0, -2, 2]]) |
---|
| 629 | |
---|
| 630 | domain.set_quantity('ymomentum', |
---|
| 631 | [[1, -1, 0], [0, -3, 2], |
---|
| 632 | [0, 1, 0], [-1, 2, 2]]) |
---|
| 633 | |
---|
| 634 | |
---|
| 635 | domain.check_integrity() |
---|
| 636 | |
---|
| 637 | |
---|
| 638 | |
---|
| 639 | #Flux across right edge of volume 1 |
---|
| 640 | normal = domain.get_normal(1,0) |
---|
| 641 | ql = domain.get_conserved_quantities(vol_id=1, edge=0) |
---|
| 642 | qr = domain.get_conserved_quantities(vol_id=2, edge=2) |
---|
| 643 | flux0, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
| 644 | |
---|
| 645 | #Flux across upper edge of volume 1 |
---|
| 646 | normal = domain.get_normal(1,1) |
---|
| 647 | ql = domain.get_conserved_quantities(vol_id=1, edge=1) |
---|
| 648 | qr = domain.get_conserved_quantities(vol_id=3, edge=0) |
---|
| 649 | flux1, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
| 650 | |
---|
| 651 | #Flux across lower left hypotenuse of volume 1 |
---|
| 652 | normal = domain.get_normal(1,2) |
---|
| 653 | ql = domain.get_conserved_quantities(vol_id=1, edge=2) |
---|
| 654 | qr = domain.get_conserved_quantities(vol_id=0, edge=1) |
---|
| 655 | flux2, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
| 656 | |
---|
| 657 | #Scale, add up and check that compute_fluxes is correct for vol 1 |
---|
| 658 | e0 = domain.edgelengths[1, 0] |
---|
| 659 | e1 = domain.edgelengths[1, 1] |
---|
| 660 | e2 = domain.edgelengths[1, 2] |
---|
| 661 | |
---|
| 662 | total_flux = -(e0*flux0+e1*flux1+e2*flux2)/domain.areas[1] |
---|
| 663 | |
---|
| 664 | domain.compute_fluxes() |
---|
| 665 | for i, name in enumerate(['stage', 'xmomentum', 'ymomentum']): |
---|
| 666 | assert allclose(total_flux[i], |
---|
| 667 | domain.quantities[name].explicit_update[1]) |
---|
| 668 | |
---|
| 669 | |
---|
| 670 | |
---|
| 671 | def test_catching_negative_heights(self): |
---|
| 672 | |
---|
| 673 | a = [0.0, 0.0] |
---|
| 674 | b = [0.0, 2.0] |
---|
| 675 | c = [2.0,0.0] |
---|
| 676 | d = [0.0, 4.0] |
---|
| 677 | e = [2.0, 2.0] |
---|
| 678 | f = [4.0,0.0] |
---|
| 679 | |
---|
| 680 | points = [a, b, c, d, e, f] |
---|
| 681 | #bac, bce, ecf, dbe |
---|
| 682 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 683 | |
---|
| 684 | domain = Domain(points, vertices) |
---|
| 685 | val0 = 2.+2.0/3 |
---|
| 686 | val1 = 4.+4.0/3 |
---|
| 687 | val2 = 8.+2.0/3 |
---|
| 688 | val3 = 2.+8.0/3 |
---|
| 689 | |
---|
| 690 | zl=zr=4 #Too large |
---|
| 691 | domain.set_quantity('elevation', zl*ones( (4,3) )) |
---|
| 692 | domain.set_quantity('stage', [[val0, val0-1, val0-2], |
---|
| 693 | [val1, val1+1, val1], |
---|
| 694 | [val2, val2-2, val2], |
---|
| 695 | [val3-0.5, val3, val3]]) |
---|
| 696 | |
---|
| 697 | #Should fail |
---|
| 698 | try: |
---|
| 699 | domain.check_integrity() |
---|
| 700 | except: |
---|
| 701 | pass |
---|
| 702 | |
---|
| 703 | |
---|
| 704 | |
---|
| 705 | |
---|
| 706 | ##################################################### |
---|
| 707 | def test_initial_condition(self): |
---|
| 708 | """Test that initial condition is output at time == 0 |
---|
| 709 | """ |
---|
| 710 | |
---|
[3514] | 711 | from anuga.config import g |
---|
[2526] | 712 | import copy |
---|
| 713 | |
---|
| 714 | a = [0.0, 0.0] |
---|
| 715 | b = [0.0, 2.0] |
---|
| 716 | c = [2.0, 0.0] |
---|
| 717 | d = [0.0, 4.0] |
---|
| 718 | e = [2.0, 2.0] |
---|
| 719 | f = [4.0, 0.0] |
---|
| 720 | |
---|
| 721 | points = [a, b, c, d, e, f] |
---|
| 722 | #bac, bce, ecf, dbe |
---|
| 723 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 724 | |
---|
| 725 | domain = Domain(points, vertices) |
---|
| 726 | |
---|
| 727 | #Set up for a gradient of (3,0) at mid triangle |
---|
| 728 | def slope(x, y): |
---|
| 729 | return 3*x |
---|
| 730 | |
---|
| 731 | h = 0.1 |
---|
| 732 | def stage(x,y): |
---|
| 733 | return slope(x,y)+h |
---|
| 734 | |
---|
| 735 | domain.set_quantity('elevation', slope) |
---|
| 736 | domain.set_quantity('stage', stage) |
---|
| 737 | |
---|
| 738 | initial_stage = copy.copy(domain.quantities['stage'].vertex_values) |
---|
| 739 | |
---|
| 740 | domain.set_boundary({'exterior': Reflective_boundary(domain)}) |
---|
| 741 | |
---|
| 742 | #Evolution |
---|
| 743 | for t in domain.evolve(yieldstep = 1.0, finaltime = 2.0): |
---|
| 744 | stage = domain.quantities['stage'].vertex_values |
---|
| 745 | |
---|
| 746 | if t == 0.0: |
---|
| 747 | assert allclose(stage, initial_stage) |
---|
| 748 | else: |
---|
| 749 | assert not allclose(stage, initial_stage) |
---|
| 750 | |
---|
| 751 | os.remove(domain.filename + '.sww') |
---|
| 752 | |
---|
| 753 | |
---|
| 754 | |
---|
| 755 | ##################################################### |
---|
| 756 | def test_gravity(self): |
---|
| 757 | #Assuming no friction |
---|
| 758 | |
---|
[3514] | 759 | from anuga.config import g |
---|
[2526] | 760 | |
---|
| 761 | a = [0.0, 0.0] |
---|
| 762 | b = [0.0, 2.0] |
---|
| 763 | c = [2.0, 0.0] |
---|
| 764 | d = [0.0, 4.0] |
---|
| 765 | e = [2.0, 2.0] |
---|
| 766 | f = [4.0, 0.0] |
---|
| 767 | |
---|
| 768 | points = [a, b, c, d, e, f] |
---|
| 769 | #bac, bce, ecf, dbe |
---|
| 770 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 771 | |
---|
| 772 | domain = Domain(points, vertices) |
---|
| 773 | |
---|
| 774 | #Set up for a gradient of (3,0) at mid triangle |
---|
| 775 | def slope(x, y): |
---|
| 776 | return 3*x |
---|
| 777 | |
---|
| 778 | h = 0.1 |
---|
| 779 | def stage(x,y): |
---|
| 780 | return slope(x,y)+h |
---|
| 781 | |
---|
| 782 | domain.set_quantity('elevation', slope) |
---|
| 783 | domain.set_quantity('stage', stage) |
---|
| 784 | |
---|
| 785 | for name in domain.conserved_quantities: |
---|
| 786 | assert allclose(domain.quantities[name].explicit_update, 0) |
---|
| 787 | assert allclose(domain.quantities[name].semi_implicit_update, 0) |
---|
| 788 | |
---|
| 789 | domain.compute_forcing_terms() |
---|
| 790 | |
---|
| 791 | assert allclose(domain.quantities['stage'].explicit_update, 0) |
---|
| 792 | assert allclose(domain.quantities['xmomentum'].explicit_update, -g*h*3) |
---|
| 793 | assert allclose(domain.quantities['ymomentum'].explicit_update, 0) |
---|
| 794 | |
---|
| 795 | |
---|
| 796 | def test_manning_friction(self): |
---|
[3514] | 797 | from anuga.config import g |
---|
[2526] | 798 | |
---|
| 799 | a = [0.0, 0.0] |
---|
| 800 | b = [0.0, 2.0] |
---|
| 801 | c = [2.0, 0.0] |
---|
| 802 | d = [0.0, 4.0] |
---|
| 803 | e = [2.0, 2.0] |
---|
| 804 | f = [4.0, 0.0] |
---|
| 805 | |
---|
| 806 | points = [a, b, c, d, e, f] |
---|
| 807 | #bac, bce, ecf, dbe |
---|
| 808 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 809 | |
---|
| 810 | domain = Domain(points, vertices) |
---|
| 811 | |
---|
| 812 | #Set up for a gradient of (3,0) at mid triangle |
---|
| 813 | def slope(x, y): |
---|
| 814 | return 3*x |
---|
| 815 | |
---|
| 816 | h = 0.1 |
---|
| 817 | def stage(x,y): |
---|
| 818 | return slope(x,y)+h |
---|
| 819 | |
---|
| 820 | eta = 0.07 |
---|
| 821 | domain.set_quantity('elevation', slope) |
---|
| 822 | domain.set_quantity('stage', stage) |
---|
| 823 | domain.set_quantity('friction', eta) |
---|
| 824 | |
---|
| 825 | for name in domain.conserved_quantities: |
---|
| 826 | assert allclose(domain.quantities[name].explicit_update, 0) |
---|
| 827 | assert allclose(domain.quantities[name].semi_implicit_update, 0) |
---|
| 828 | |
---|
| 829 | domain.compute_forcing_terms() |
---|
| 830 | |
---|
| 831 | assert allclose(domain.quantities['stage'].explicit_update, 0) |
---|
| 832 | assert allclose(domain.quantities['xmomentum'].explicit_update, -g*h*3) |
---|
| 833 | assert allclose(domain.quantities['ymomentum'].explicit_update, 0) |
---|
| 834 | |
---|
| 835 | assert allclose(domain.quantities['stage'].semi_implicit_update, 0) |
---|
| 836 | assert allclose(domain.quantities['xmomentum'].semi_implicit_update, 0) |
---|
| 837 | assert allclose(domain.quantities['ymomentum'].semi_implicit_update, 0) |
---|
| 838 | |
---|
| 839 | #Create some momentum for friction to work with |
---|
| 840 | domain.set_quantity('xmomentum', 1) |
---|
| 841 | S = -g * eta**2 / h**(7.0/3) |
---|
| 842 | |
---|
| 843 | domain.compute_forcing_terms() |
---|
| 844 | assert allclose(domain.quantities['stage'].semi_implicit_update, 0) |
---|
| 845 | assert allclose(domain.quantities['xmomentum'].semi_implicit_update, S) |
---|
| 846 | assert allclose(domain.quantities['ymomentum'].semi_implicit_update, 0) |
---|
| 847 | |
---|
| 848 | #A more complex example |
---|
| 849 | domain.quantities['stage'].semi_implicit_update[:] = 0.0 |
---|
| 850 | domain.quantities['xmomentum'].semi_implicit_update[:] = 0.0 |
---|
| 851 | domain.quantities['ymomentum'].semi_implicit_update[:] = 0.0 |
---|
| 852 | |
---|
| 853 | domain.set_quantity('xmomentum', 3) |
---|
| 854 | domain.set_quantity('ymomentum', 4) |
---|
| 855 | |
---|
| 856 | S = -g * eta**2 * 5 / h**(7.0/3) |
---|
| 857 | |
---|
| 858 | |
---|
| 859 | domain.compute_forcing_terms() |
---|
| 860 | |
---|
| 861 | assert allclose(domain.quantities['stage'].semi_implicit_update, 0) |
---|
| 862 | assert allclose(domain.quantities['xmomentum'].semi_implicit_update, 3*S) |
---|
| 863 | assert allclose(domain.quantities['ymomentum'].semi_implicit_update, 4*S) |
---|
| 864 | |
---|
| 865 | def test_constant_wind_stress(self): |
---|
[3514] | 866 | from anuga.config import rho_a, rho_w, eta_w |
---|
[2526] | 867 | from math import pi, cos, sin, sqrt |
---|
| 868 | |
---|
| 869 | a = [0.0, 0.0] |
---|
| 870 | b = [0.0, 2.0] |
---|
| 871 | c = [2.0, 0.0] |
---|
| 872 | d = [0.0, 4.0] |
---|
| 873 | e = [2.0, 2.0] |
---|
| 874 | f = [4.0, 0.0] |
---|
| 875 | |
---|
| 876 | points = [a, b, c, d, e, f] |
---|
| 877 | #bac, bce, ecf, dbe |
---|
| 878 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 879 | |
---|
| 880 | |
---|
| 881 | domain = Domain(points, vertices) |
---|
| 882 | |
---|
| 883 | #Flat surface with 1m of water |
---|
| 884 | domain.set_quantity('elevation', 0) |
---|
| 885 | domain.set_quantity('stage', 1.0) |
---|
| 886 | domain.set_quantity('friction', 0) |
---|
| 887 | |
---|
| 888 | Br = Reflective_boundary(domain) |
---|
| 889 | domain.set_boundary({'exterior': Br}) |
---|
| 890 | |
---|
| 891 | #Setup only one forcing term, constant wind stress |
---|
| 892 | s = 100 |
---|
| 893 | phi = 135 |
---|
| 894 | domain.forcing_terms = [] |
---|
| 895 | domain.forcing_terms.append( Wind_stress(s, phi) ) |
---|
| 896 | |
---|
| 897 | domain.compute_forcing_terms() |
---|
| 898 | |
---|
| 899 | |
---|
| 900 | const = eta_w*rho_a/rho_w |
---|
| 901 | |
---|
| 902 | #Convert to radians |
---|
| 903 | phi = phi*pi/180 |
---|
| 904 | |
---|
| 905 | #Compute velocity vector (u, v) |
---|
| 906 | u = s*cos(phi) |
---|
| 907 | v = s*sin(phi) |
---|
| 908 | |
---|
| 909 | #Compute wind stress |
---|
| 910 | S = const * sqrt(u**2 + v**2) |
---|
| 911 | |
---|
| 912 | assert allclose(domain.quantities['stage'].explicit_update, 0) |
---|
| 913 | assert allclose(domain.quantities['xmomentum'].explicit_update, S*u) |
---|
| 914 | assert allclose(domain.quantities['ymomentum'].explicit_update, S*v) |
---|
| 915 | |
---|
| 916 | |
---|
| 917 | def test_variable_wind_stress(self): |
---|
[3514] | 918 | from anuga.config import rho_a, rho_w, eta_w |
---|
[2526] | 919 | from math import pi, cos, sin, sqrt |
---|
| 920 | |
---|
| 921 | a = [0.0, 0.0] |
---|
| 922 | b = [0.0, 2.0] |
---|
| 923 | c = [2.0, 0.0] |
---|
| 924 | d = [0.0, 4.0] |
---|
| 925 | e = [2.0, 2.0] |
---|
| 926 | f = [4.0, 0.0] |
---|
| 927 | |
---|
| 928 | points = [a, b, c, d, e, f] |
---|
| 929 | #bac, bce, ecf, dbe |
---|
| 930 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 931 | |
---|
| 932 | domain = Domain(points, vertices) |
---|
| 933 | |
---|
| 934 | #Flat surface with 1m of water |
---|
| 935 | domain.set_quantity('elevation', 0) |
---|
| 936 | domain.set_quantity('stage', 1.0) |
---|
| 937 | domain.set_quantity('friction', 0) |
---|
| 938 | |
---|
| 939 | Br = Reflective_boundary(domain) |
---|
| 940 | domain.set_boundary({'exterior': Br}) |
---|
| 941 | |
---|
| 942 | |
---|
| 943 | domain.time = 5.54 #Take a random time (not zero) |
---|
| 944 | |
---|
| 945 | #Setup only one forcing term, constant wind stress |
---|
| 946 | s = 100 |
---|
| 947 | phi = 135 |
---|
| 948 | domain.forcing_terms = [] |
---|
| 949 | domain.forcing_terms.append( Wind_stress(s = speed, phi = angle) ) |
---|
| 950 | |
---|
| 951 | domain.compute_forcing_terms() |
---|
| 952 | |
---|
| 953 | #Compute reference solution |
---|
| 954 | const = eta_w*rho_a/rho_w |
---|
| 955 | |
---|
| 956 | N = domain.number_of_elements |
---|
| 957 | |
---|
| 958 | xc = domain.get_centroid_coordinates() |
---|
| 959 | t = domain.time |
---|
| 960 | |
---|
| 961 | x = xc[:,0] |
---|
| 962 | y = xc[:,1] |
---|
| 963 | s_vec = speed(t,x,y) |
---|
| 964 | phi_vec = angle(t,x,y) |
---|
| 965 | |
---|
| 966 | |
---|
| 967 | for k in range(N): |
---|
| 968 | #Convert to radians |
---|
| 969 | phi = phi_vec[k]*pi/180 |
---|
| 970 | s = s_vec[k] |
---|
| 971 | |
---|
| 972 | #Compute velocity vector (u, v) |
---|
| 973 | u = s*cos(phi) |
---|
| 974 | v = s*sin(phi) |
---|
| 975 | |
---|
| 976 | #Compute wind stress |
---|
| 977 | S = const * sqrt(u**2 + v**2) |
---|
| 978 | |
---|
| 979 | assert allclose(domain.quantities['stage'].explicit_update[k], 0) |
---|
| 980 | assert allclose(domain.quantities['xmomentum'].explicit_update[k], S*u) |
---|
| 981 | assert allclose(domain.quantities['ymomentum'].explicit_update[k], S*v) |
---|
| 982 | |
---|
| 983 | |
---|
| 984 | |
---|
| 985 | |
---|
| 986 | def test_windfield_from_file(self): |
---|
[3514] | 987 | from anuga.config import rho_a, rho_w, eta_w |
---|
[2526] | 988 | from math import pi, cos, sin, sqrt |
---|
[3514] | 989 | from anuga.config import time_format |
---|
[3560] | 990 | from anuga.abstract_2d_finite_volumes.util import file_function |
---|
[2526] | 991 | import time |
---|
| 992 | |
---|
| 993 | |
---|
| 994 | a = [0.0, 0.0] |
---|
| 995 | b = [0.0, 2.0] |
---|
| 996 | c = [2.0, 0.0] |
---|
| 997 | d = [0.0, 4.0] |
---|
| 998 | e = [2.0, 2.0] |
---|
| 999 | f = [4.0, 0.0] |
---|
| 1000 | |
---|
| 1001 | points = [a, b, c, d, e, f] |
---|
| 1002 | #bac, bce, ecf, dbe |
---|
| 1003 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 1004 | |
---|
| 1005 | domain = Domain(points, vertices) |
---|
| 1006 | |
---|
| 1007 | #Flat surface with 1m of water |
---|
| 1008 | domain.set_quantity('elevation', 0) |
---|
| 1009 | domain.set_quantity('stage', 1.0) |
---|
| 1010 | domain.set_quantity('friction', 0) |
---|
| 1011 | |
---|
| 1012 | Br = Reflective_boundary(domain) |
---|
| 1013 | domain.set_boundary({'exterior': Br}) |
---|
| 1014 | |
---|
| 1015 | |
---|
| 1016 | domain.time = 7 #Take a time that is represented in file (not zero) |
---|
| 1017 | |
---|
| 1018 | #Write wind stress file (ensure that domain.time is covered) |
---|
| 1019 | #Take x=1 and y=0 |
---|
| 1020 | filename = 'test_windstress_from_file' |
---|
| 1021 | start = time.mktime(time.strptime('2000', '%Y')) |
---|
| 1022 | fid = open(filename + '.txt', 'w') |
---|
| 1023 | dt = 1 #One second interval |
---|
| 1024 | t = 0.0 |
---|
| 1025 | while t <= 10.0: |
---|
| 1026 | t_string = time.strftime(time_format, time.gmtime(t+start)) |
---|
| 1027 | |
---|
| 1028 | fid.write('%s, %f %f\n' %(t_string, |
---|
| 1029 | speed(t,[1],[0])[0], |
---|
| 1030 | angle(t,[1],[0])[0])) |
---|
| 1031 | t += dt |
---|
| 1032 | |
---|
| 1033 | fid.close() |
---|
| 1034 | |
---|
| 1035 | |
---|
| 1036 | #Convert ASCII file to NetCDF (Which is what we really like!) |
---|
[3563] | 1037 | from data_manager import timefile2netcdf |
---|
[2526] | 1038 | timefile2netcdf(filename) |
---|
| 1039 | os.remove(filename + '.txt') |
---|
| 1040 | |
---|
| 1041 | |
---|
| 1042 | #Setup wind stress |
---|
| 1043 | F = file_function(filename + '.tms', quantities = ['Attribute0', |
---|
| 1044 | 'Attribute1']) |
---|
| 1045 | os.remove(filename + '.tms') |
---|
| 1046 | |
---|
| 1047 | |
---|
| 1048 | #print 'F(5)', F(5) |
---|
| 1049 | |
---|
| 1050 | #print 'F(5,x,y)', F(5,x=zeros(3),y=zeros(3)) |
---|
| 1051 | |
---|
| 1052 | #print dir(F) |
---|
| 1053 | #print F.T |
---|
| 1054 | #print F.precomputed_values |
---|
| 1055 | # |
---|
| 1056 | #F = file_function(filename + '.txt') |
---|
| 1057 | # |
---|
| 1058 | #print dir(F) |
---|
| 1059 | #print F.T |
---|
| 1060 | #print F.Q |
---|
| 1061 | |
---|
| 1062 | W = Wind_stress(F) |
---|
| 1063 | |
---|
| 1064 | domain.forcing_terms = [] |
---|
| 1065 | domain.forcing_terms.append(W) |
---|
| 1066 | |
---|
| 1067 | domain.compute_forcing_terms() |
---|
| 1068 | |
---|
| 1069 | #Compute reference solution |
---|
| 1070 | const = eta_w*rho_a/rho_w |
---|
| 1071 | |
---|
| 1072 | N = domain.number_of_elements |
---|
| 1073 | |
---|
| 1074 | t = domain.time |
---|
| 1075 | |
---|
| 1076 | s = speed(t,[1],[0])[0] |
---|
| 1077 | phi = angle(t,[1],[0])[0] |
---|
| 1078 | |
---|
| 1079 | #Convert to radians |
---|
| 1080 | phi = phi*pi/180 |
---|
| 1081 | |
---|
| 1082 | |
---|
| 1083 | #Compute velocity vector (u, v) |
---|
| 1084 | u = s*cos(phi) |
---|
| 1085 | v = s*sin(phi) |
---|
| 1086 | |
---|
| 1087 | #Compute wind stress |
---|
| 1088 | S = const * sqrt(u**2 + v**2) |
---|
| 1089 | |
---|
| 1090 | for k in range(N): |
---|
| 1091 | assert allclose(domain.quantities['stage'].explicit_update[k], 0) |
---|
| 1092 | assert allclose(domain.quantities['xmomentum'].explicit_update[k], S*u) |
---|
| 1093 | assert allclose(domain.quantities['ymomentum'].explicit_update[k], S*v) |
---|
| 1094 | |
---|
| 1095 | |
---|
| 1096 | |
---|
| 1097 | |
---|
| 1098 | def test_wind_stress_error_condition(self): |
---|
| 1099 | """Test that windstress reacts properly when forcing functions |
---|
| 1100 | are wrong - e.g. returns a scalar |
---|
| 1101 | """ |
---|
| 1102 | |
---|
[3514] | 1103 | from anuga.config import rho_a, rho_w, eta_w |
---|
[2526] | 1104 | from math import pi, cos, sin, sqrt |
---|
| 1105 | |
---|
| 1106 | a = [0.0, 0.0] |
---|
| 1107 | b = [0.0, 2.0] |
---|
| 1108 | c = [2.0, 0.0] |
---|
| 1109 | d = [0.0, 4.0] |
---|
| 1110 | e = [2.0, 2.0] |
---|
| 1111 | f = [4.0, 0.0] |
---|
| 1112 | |
---|
| 1113 | points = [a, b, c, d, e, f] |
---|
| 1114 | #bac, bce, ecf, dbe |
---|
| 1115 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 1116 | |
---|
| 1117 | domain = Domain(points, vertices) |
---|
| 1118 | |
---|
| 1119 | #Flat surface with 1m of water |
---|
| 1120 | domain.set_quantity('elevation', 0) |
---|
| 1121 | domain.set_quantity('stage', 1.0) |
---|
| 1122 | domain.set_quantity('friction', 0) |
---|
| 1123 | |
---|
| 1124 | Br = Reflective_boundary(domain) |
---|
| 1125 | domain.set_boundary({'exterior': Br}) |
---|
| 1126 | |
---|
| 1127 | |
---|
| 1128 | domain.time = 5.54 #Take a random time (not zero) |
---|
| 1129 | |
---|
| 1130 | #Setup only one forcing term, bad func |
---|
| 1131 | domain.forcing_terms = [] |
---|
| 1132 | |
---|
| 1133 | try: |
---|
| 1134 | domain.forcing_terms.append(Wind_stress(s = scalar_func, |
---|
| 1135 | phi = angle)) |
---|
| 1136 | except AssertionError: |
---|
| 1137 | pass |
---|
| 1138 | else: |
---|
| 1139 | msg = 'Should have raised exception' |
---|
| 1140 | raise msg |
---|
| 1141 | |
---|
| 1142 | |
---|
| 1143 | try: |
---|
| 1144 | domain.forcing_terms.append(Wind_stress(s = speed, |
---|
| 1145 | phi = scalar_func)) |
---|
| 1146 | except AssertionError: |
---|
| 1147 | pass |
---|
| 1148 | else: |
---|
| 1149 | msg = 'Should have raised exception' |
---|
| 1150 | raise msg |
---|
| 1151 | |
---|
| 1152 | try: |
---|
| 1153 | domain.forcing_terms.append(Wind_stress(s = speed, |
---|
| 1154 | phi = 'xx')) |
---|
| 1155 | except: |
---|
| 1156 | pass |
---|
| 1157 | else: |
---|
| 1158 | msg = 'Should have raised exception' |
---|
| 1159 | raise msg |
---|
| 1160 | |
---|
| 1161 | |
---|
| 1162 | ##################################################### |
---|
| 1163 | def test_first_order_extrapolator_const_z(self): |
---|
| 1164 | |
---|
| 1165 | a = [0.0, 0.0] |
---|
| 1166 | b = [0.0, 2.0] |
---|
| 1167 | c = [2.0, 0.0] |
---|
| 1168 | d = [0.0, 4.0] |
---|
| 1169 | e = [2.0, 2.0] |
---|
| 1170 | f = [4.0, 0.0] |
---|
| 1171 | |
---|
| 1172 | points = [a, b, c, d, e, f] |
---|
| 1173 | #bac, bce, ecf, dbe |
---|
| 1174 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 1175 | |
---|
| 1176 | domain = Domain(points, vertices) |
---|
| 1177 | val0 = 2.+2.0/3 |
---|
| 1178 | val1 = 4.+4.0/3 |
---|
| 1179 | val2 = 8.+2.0/3 |
---|
| 1180 | val3 = 2.+8.0/3 |
---|
| 1181 | |
---|
| 1182 | zl=zr=-3.75 #Assume constant bed (must be less than stage) |
---|
| 1183 | domain.set_quantity('elevation', zl*ones( (4,3) )) |
---|
| 1184 | domain.set_quantity('stage', [[val0, val0-1, val0-2], |
---|
| 1185 | [val1, val1+1, val1], |
---|
| 1186 | [val2, val2-2, val2], |
---|
| 1187 | [val3-0.5, val3, val3]]) |
---|
| 1188 | |
---|
| 1189 | |
---|
| 1190 | |
---|
| 1191 | domain.order = 1 |
---|
| 1192 | domain.distribute_to_vertices_and_edges() |
---|
| 1193 | |
---|
| 1194 | #Check that centroid values were distributed to vertices |
---|
| 1195 | C = domain.quantities['stage'].centroid_values |
---|
| 1196 | for i in range(3): |
---|
| 1197 | assert allclose( domain.quantities['stage'].vertex_values[:,i], C) |
---|
| 1198 | |
---|
| 1199 | |
---|
| 1200 | def test_first_order_limiter_variable_z(self): |
---|
| 1201 | #Check that first order limiter follows bed_slope |
---|
| 1202 | from Numeric import alltrue, greater_equal |
---|
[3514] | 1203 | from anuga.config import epsilon |
---|
[2526] | 1204 | |
---|
| 1205 | a = [0.0, 0.0] |
---|
| 1206 | b = [0.0, 2.0] |
---|
| 1207 | c = [2.0,0.0] |
---|
| 1208 | d = [0.0, 4.0] |
---|
| 1209 | e = [2.0, 2.0] |
---|
| 1210 | f = [4.0,0.0] |
---|
| 1211 | |
---|
| 1212 | points = [a, b, c, d, e, f] |
---|
| 1213 | #bac, bce, ecf, dbe |
---|
| 1214 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 1215 | |
---|
| 1216 | domain = Domain(points, vertices) |
---|
| 1217 | val0 = 2.+2.0/3 |
---|
| 1218 | val1 = 4.+4.0/3 |
---|
| 1219 | val2 = 8.+2.0/3 |
---|
| 1220 | val3 = 2.+8.0/3 |
---|
| 1221 | |
---|
| 1222 | domain.set_quantity('elevation', [[0,0,0], [6,0,0], |
---|
| 1223 | [6,6,6], [6,6,6]]) |
---|
| 1224 | domain.set_quantity('stage', [[val0, val0, val0], |
---|
| 1225 | [val1, val1, val1], |
---|
| 1226 | [val2, val2, val2], |
---|
| 1227 | [val3, val3, val3]]) |
---|
| 1228 | |
---|
| 1229 | E = domain.quantities['elevation'].vertex_values |
---|
| 1230 | L = domain.quantities['stage'].vertex_values |
---|
| 1231 | |
---|
| 1232 | |
---|
| 1233 | #Check that some stages are not above elevation (within eps) |
---|
| 1234 | #- so that the limiter has something to work with |
---|
| 1235 | assert not alltrue(alltrue(greater_equal(L,E-epsilon))) |
---|
| 1236 | |
---|
| 1237 | domain.order = 1 |
---|
| 1238 | domain.distribute_to_vertices_and_edges() |
---|
| 1239 | |
---|
| 1240 | #Check that all stages are above elevation (within eps) |
---|
| 1241 | assert alltrue(alltrue(greater_equal(L,E-epsilon))) |
---|
| 1242 | |
---|
| 1243 | |
---|
| 1244 | ##################################################### |
---|
| 1245 | def test_distribute_basic(self): |
---|
[3560] | 1246 | #Using test data generated by abstract_2d_finite_volumes-2 |
---|
[2526] | 1247 | #Assuming no friction and flat bed (0.0) |
---|
| 1248 | |
---|
| 1249 | a = [0.0, 0.0] |
---|
| 1250 | b = [0.0, 2.0] |
---|
| 1251 | c = [2.0, 0.0] |
---|
| 1252 | d = [0.0, 4.0] |
---|
| 1253 | e = [2.0, 2.0] |
---|
| 1254 | f = [4.0, 0.0] |
---|
| 1255 | |
---|
| 1256 | points = [a, b, c, d, e, f] |
---|
| 1257 | #bac, bce, ecf, dbe |
---|
| 1258 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 1259 | |
---|
| 1260 | domain = Domain(points, vertices) |
---|
| 1261 | |
---|
| 1262 | val0 = 2. |
---|
| 1263 | val1 = 4. |
---|
| 1264 | val2 = 8. |
---|
| 1265 | val3 = 2. |
---|
| 1266 | |
---|
| 1267 | domain.set_quantity('stage', [val0, val1, val2, val3], |
---|
| 1268 | location='centroids') |
---|
| 1269 | L = domain.quantities['stage'].vertex_values |
---|
| 1270 | |
---|
| 1271 | #First order |
---|
| 1272 | domain.order = 1 |
---|
| 1273 | domain.distribute_to_vertices_and_edges() |
---|
| 1274 | assert allclose(L[1], val1) |
---|
| 1275 | |
---|
| 1276 | #Second order |
---|
| 1277 | domain.order = 2 |
---|
| 1278 | domain.distribute_to_vertices_and_edges() |
---|
| 1279 | assert allclose(L[1], [2.2, 4.9, 4.9]) |
---|
| 1280 | |
---|
| 1281 | |
---|
| 1282 | |
---|
| 1283 | def test_distribute_away_from_bed(self): |
---|
[3560] | 1284 | #Using test data generated by abstract_2d_finite_volumes-2 |
---|
[2526] | 1285 | #Assuming no friction and flat bed (0.0) |
---|
| 1286 | |
---|
| 1287 | a = [0.0, 0.0] |
---|
| 1288 | b = [0.0, 2.0] |
---|
| 1289 | c = [2.0, 0.0] |
---|
| 1290 | d = [0.0, 4.0] |
---|
| 1291 | e = [2.0, 2.0] |
---|
| 1292 | f = [4.0, 0.0] |
---|
| 1293 | |
---|
| 1294 | points = [a, b, c, d, e, f] |
---|
| 1295 | #bac, bce, ecf, dbe |
---|
| 1296 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 1297 | |
---|
| 1298 | domain = Domain(points, vertices) |
---|
| 1299 | L = domain.quantities['stage'].vertex_values |
---|
| 1300 | |
---|
| 1301 | def stage(x,y): |
---|
| 1302 | return x**2 |
---|
| 1303 | |
---|
| 1304 | domain.set_quantity('stage', stage, location='centroids') |
---|
| 1305 | |
---|
| 1306 | a, b = domain.quantities['stage'].compute_gradients() |
---|
| 1307 | assert allclose(a[1], 3.33333334) |
---|
| 1308 | assert allclose(b[1], 0.0) |
---|
| 1309 | |
---|
| 1310 | domain.order = 1 |
---|
| 1311 | domain.distribute_to_vertices_and_edges() |
---|
| 1312 | assert allclose(L[1], 1.77777778) |
---|
| 1313 | |
---|
| 1314 | domain.order = 2 |
---|
| 1315 | domain.distribute_to_vertices_and_edges() |
---|
| 1316 | assert allclose(L[1], [0.57777777, 2.37777778, 2.37777778]) |
---|
| 1317 | |
---|
| 1318 | |
---|
| 1319 | |
---|
| 1320 | def test_distribute_away_from_bed1(self): |
---|
[3560] | 1321 | #Using test data generated by abstract_2d_finite_volumes-2 |
---|
[2526] | 1322 | #Assuming no friction and flat bed (0.0) |
---|
| 1323 | |
---|
| 1324 | a = [0.0, 0.0] |
---|
| 1325 | b = [0.0, 2.0] |
---|
| 1326 | c = [2.0, 0.0] |
---|
| 1327 | d = [0.0, 4.0] |
---|
| 1328 | e = [2.0, 2.0] |
---|
| 1329 | f = [4.0, 0.0] |
---|
| 1330 | |
---|
| 1331 | points = [a, b, c, d, e, f] |
---|
| 1332 | #bac, bce, ecf, dbe |
---|
| 1333 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 1334 | |
---|
| 1335 | domain = Domain(points, vertices) |
---|
| 1336 | L = domain.quantities['stage'].vertex_values |
---|
| 1337 | |
---|
| 1338 | def stage(x,y): |
---|
| 1339 | return x**4+y**2 |
---|
| 1340 | |
---|
| 1341 | domain.set_quantity('stage', stage, location='centroids') |
---|
| 1342 | #print domain.quantities['stage'].centroid_values |
---|
| 1343 | |
---|
| 1344 | a, b = domain.quantities['stage'].compute_gradients() |
---|
| 1345 | assert allclose(a[1], 25.18518519) |
---|
| 1346 | assert allclose(b[1], 3.33333333) |
---|
| 1347 | |
---|
| 1348 | domain.order = 1 |
---|
| 1349 | domain.distribute_to_vertices_and_edges() |
---|
| 1350 | assert allclose(L[1], 4.9382716) |
---|
| 1351 | |
---|
| 1352 | domain.order = 2 |
---|
| 1353 | domain.distribute_to_vertices_and_edges() |
---|
| 1354 | assert allclose(L[1], [1.07160494, 6.46058131, 7.28262855]) |
---|
| 1355 | |
---|
| 1356 | |
---|
| 1357 | |
---|
| 1358 | def test_distribute_near_bed(self): |
---|
[3560] | 1359 | #Using test data generated by abstract_2d_finite_volumes-2 |
---|
[2526] | 1360 | #Assuming no friction and flat bed (0.0) |
---|
| 1361 | |
---|
| 1362 | a = [0.0, 0.0] |
---|
| 1363 | b = [0.0, 2.0] |
---|
| 1364 | c = [2.0, 0.0] |
---|
| 1365 | d = [0.0, 4.0] |
---|
| 1366 | e = [2.0, 2.0] |
---|
| 1367 | f = [4.0, 0.0] |
---|
| 1368 | |
---|
| 1369 | points = [a, b, c, d, e, f] |
---|
| 1370 | #bac, bce, ecf, dbe |
---|
| 1371 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 1372 | |
---|
| 1373 | domain = Domain(points, vertices) |
---|
| 1374 | |
---|
| 1375 | |
---|
| 1376 | #Set up for a gradient of (3,0) at mid triangle |
---|
| 1377 | def slope(x, y): |
---|
| 1378 | return 10*x |
---|
| 1379 | |
---|
| 1380 | h = 0.1 |
---|
| 1381 | def stage(x,y): |
---|
| 1382 | return slope(x,y)+h |
---|
| 1383 | |
---|
| 1384 | domain.set_quantity('elevation', slope) |
---|
| 1385 | domain.set_quantity('stage', stage, location='centroids') |
---|
| 1386 | |
---|
| 1387 | #print domain.quantities['elevation'].centroid_values |
---|
| 1388 | #print domain.quantities['stage'].centroid_values |
---|
| 1389 | |
---|
| 1390 | E = domain.quantities['elevation'].vertex_values |
---|
| 1391 | L = domain.quantities['stage'].vertex_values |
---|
| 1392 | |
---|
| 1393 | #print E |
---|
| 1394 | domain.order = 1 |
---|
| 1395 | domain.distribute_to_vertices_and_edges() |
---|
| 1396 | ##assert allclose(L[1], [0.19999999, 20.05, 20.05]) |
---|
| 1397 | assert allclose(L[1], [0.1, 20.1, 20.1]) |
---|
| 1398 | |
---|
| 1399 | domain.order = 2 |
---|
| 1400 | domain.distribute_to_vertices_and_edges() |
---|
| 1401 | assert allclose(L[1], [0.1, 20.1, 20.1]) |
---|
| 1402 | |
---|
| 1403 | def test_distribute_near_bed1(self): |
---|
[3560] | 1404 | #Using test data generated by abstract_2d_finite_volumes-2 |
---|
[2526] | 1405 | #Assuming no friction and flat bed (0.0) |
---|
| 1406 | |
---|
| 1407 | a = [0.0, 0.0] |
---|
| 1408 | b = [0.0, 2.0] |
---|
| 1409 | c = [2.0, 0.0] |
---|
| 1410 | d = [0.0, 4.0] |
---|
| 1411 | e = [2.0, 2.0] |
---|
| 1412 | f = [4.0, 0.0] |
---|
| 1413 | |
---|
| 1414 | points = [a, b, c, d, e, f] |
---|
| 1415 | #bac, bce, ecf, dbe |
---|
| 1416 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
| 1417 | |
---|
| 1418 | domain = Domain(points, vertices) |
---|
| 1419 | |
---|
| 1420 | |
---|
| 1421 | #Set up for a gradient of (3,0) at mid triangle |
---|
| 1422 | def slope(x, y): |
---|
| 1423 | return x**4+y**2 |
---|
| 1424 | |
---|
| 1425 | h = 0.1 |
---|
| 1426 | def stage(x,y): |
---|
| 1427 | return slope(x,y)+h |
---|
| 1428 | |
---|
| 1429 | domain.set_quantity('elevation', slope) |
---|
| 1430 | domain.set_quantity('stage', stage) |
---|
| 1431 | |
---|
| 1432 | #print domain.quantities['elevation'].centroid_values |
---|
| 1433 | #print domain.quantities['stage'].centroid_values |
---|
| 1434 | |
---|
| 1435 | E = domain.quantities['elevation'].vertex_values |
---|
| 1436 | L = domain.quantities['stage'].vertex_values |
---|
| 1437 | |
---|
| 1438 | #print E |
---|
| 1439 | domain.order = 1 |
---|
| 1440 | domain.distribute_to_vertices_and_edges() |
---|
| 1441 | ##assert allclose(L[1], [4.19999999, 16.07142857, 20.02857143]) |
---|
| 1442 | assert allclose(L[1], [4.1, 16.1, 20.1]) |
---|
| 1443 | |
---|
| 1444 | domain.order = 2 |
---|
| 1445 | domain.distribute_to_vertices_and_edges() |
---|
| 1446 | assert allclose(L[1], [4.1, 16.1, 20.1]) |
---|
| 1447 | |
---|
| 1448 | |
---|
| 1449 | |
---|
| 1450 | def test_second_order_distribute_real_data(self): |
---|
[3560] | 1451 | #Using test data generated by abstract_2d_finite_volumes-2 |
---|
[2526] | 1452 | #Assuming no friction and flat bed (0.0) |
---|
| 1453 | |
---|
| 1454 | a = [0.0, 0.0] |
---|
| 1455 | b = [0.0, 1.0/5] |
---|
| 1456 | c = [0.0, 2.0/5] |
---|
| 1457 | d = [1.0/5, 0.0] |
---|
| 1458 | e = [1.0/5, 1.0/5] |
---|
| 1459 | f = [1.0/5, 2.0/5] |
---|
| 1460 | g = [2.0/5, 2.0/5] |
---|
| 1461 | |
---|
| 1462 | points = [a, b, c, d, e, f, g] |
---|
| 1463 | #bae, efb, cbf, feg |
---|
| 1464 | vertices = [ [1,0,4], [4,5,1], [2,1,5], [5,4,6]] |
---|
| 1465 | |
---|
| 1466 | domain = Domain(points, vertices) |
---|
| 1467 | |
---|
| 1468 | def slope(x, y): |
---|
| 1469 | return -x/3 |
---|
| 1470 | |
---|
| 1471 | domain.set_quantity('elevation', slope) |
---|
| 1472 | domain.set_quantity('stage', |
---|
| 1473 | [0.01298164, 0.00365611, |
---|
| 1474 | 0.01440365, -0.0381856437096], |
---|
| 1475 | location='centroids') |
---|
| 1476 | domain.set_quantity('xmomentum', |
---|
| 1477 | [0.00670439, 0.01263789, |
---|
| 1478 | 0.00647805, 0.0178180740668], |
---|
| 1479 | location='centroids') |
---|
| 1480 | domain.set_quantity('ymomentum', |
---|
| 1481 | [-7.23510980e-004, -6.30413883e-005, |
---|
| 1482 | 6.30413883e-005, 0.000200907255866], |
---|
| 1483 | location='centroids') |
---|
| 1484 | |
---|
| 1485 | E = domain.quantities['elevation'].vertex_values |
---|
| 1486 | L = domain.quantities['stage'].vertex_values |
---|
| 1487 | X = domain.quantities['xmomentum'].vertex_values |
---|
| 1488 | Y = domain.quantities['ymomentum'].vertex_values |
---|
| 1489 | |
---|
| 1490 | #print E |
---|
| 1491 | domain.order = 2 |
---|
| 1492 | domain.beta_h = 0.0 #Use first order in h-limiter |
---|
| 1493 | domain.distribute_to_vertices_and_edges() |
---|
| 1494 | |
---|
| 1495 | #print L[1,:] |
---|
| 1496 | #print X[1,:] |
---|
| 1497 | #print Y[1,:] |
---|
| 1498 | |
---|
| 1499 | assert allclose(L[1,:], [-0.00825735775384, |
---|
| 1500 | -0.00801881482869, |
---|
| 1501 | 0.0272445025825]) |
---|
| 1502 | assert allclose(X[1,:], [0.0143507718962, |
---|
| 1503 | 0.0142502147066, |
---|
| 1504 | 0.00931268339717]) |
---|
| 1505 | assert allclose(Y[1,:], [-0.000117062180693, |
---|
| 1506 | 7.94434448109e-005, |
---|
| 1507 | -0.000151505429018]) |
---|
| 1508 | |
---|
| 1509 | |
---|
| 1510 | |
---|
| 1511 | def test_balance_deep_and_shallow(self): |
---|
| 1512 | """Test that balanced limiters preserve conserved quantites. |
---|
| 1513 | """ |
---|
| 1514 | import copy |
---|
| 1515 | |
---|
| 1516 | a = [0.0, 0.0] |
---|
| 1517 | b = [0.0, 2.0] |
---|
| 1518 | c = [2.0, 0.0] |
---|
| 1519 | d = [0.0, 4.0] |
---|
| 1520 | e = [2.0, 2.0] |
---|
| 1521 | f = [4.0, 0.0] |
---|
| 1522 | |
---|
| 1523 | points = [a, b, c, d, e, f] |
---|
| 1524 | |
---|
| 1525 | #bac, bce, ecf, dbe |
---|
| 1526 | elements = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
---|
| 1527 | |
---|
| 1528 | mesh = Domain(points, elements) |
---|
| 1529 | mesh.check_integrity() |
---|
| 1530 | |
---|
| 1531 | #Create a deliberate overshoot |
---|
| 1532 | mesh.set_quantity('stage', [[3,0,3], [2,2,6], [5,3,8], [8,3,5]]) |
---|
| 1533 | mesh.set_quantity('elevation', 0) #Flat bed |
---|
| 1534 | stage = mesh.quantities['stage'] |
---|
| 1535 | |
---|
| 1536 | ref_centroid_values = copy.copy(stage.centroid_values[:]) #Copy |
---|
| 1537 | |
---|
| 1538 | #Limit |
---|
| 1539 | mesh.distribute_to_vertices_and_edges() |
---|
| 1540 | |
---|
| 1541 | #Assert that quantities are conserved |
---|
| 1542 | from Numeric import sum |
---|
| 1543 | for k in range(mesh.number_of_elements): |
---|
| 1544 | assert allclose (ref_centroid_values[k], |
---|
| 1545 | sum(stage.vertex_values[k,:])/3) |
---|
| 1546 | |
---|
| 1547 | |
---|
| 1548 | #Now try with a non-flat bed - closely hugging initial stage in places |
---|
| 1549 | #This will create alphas in the range [0, 0.478260, 1] |
---|
| 1550 | mesh.set_quantity('stage', [[3,0,3], [2,2,6], [5,3,8], [8,3,5]]) |
---|
| 1551 | mesh.set_quantity('elevation', [[0,0,0], |
---|
| 1552 | [1.8,1.9,5.9], |
---|
| 1553 | [4.6,0,0], |
---|
| 1554 | [0,2,4]]) |
---|
| 1555 | stage = mesh.quantities['stage'] |
---|
| 1556 | |
---|
| 1557 | ref_centroid_values = copy.copy(stage.centroid_values[:]) #Copy |
---|
| 1558 | ref_vertex_values = copy.copy(stage.vertex_values[:]) #Copy |
---|
| 1559 | |
---|
| 1560 | #Limit |
---|
| 1561 | mesh.distribute_to_vertices_and_edges() |
---|
| 1562 | |
---|
| 1563 | |
---|
| 1564 | #Assert that all vertex quantities have changed |
---|
| 1565 | for k in range(mesh.number_of_elements): |
---|
| 1566 | #print ref_vertex_values[k,:], stage.vertex_values[k,:] |
---|
| 1567 | assert not allclose (ref_vertex_values[k,:], stage.vertex_values[k,:]) |
---|
| 1568 | #and assert that quantities are still conserved |
---|
| 1569 | from Numeric import sum |
---|
| 1570 | for k in range(mesh.number_of_elements): |
---|
| 1571 | assert allclose (ref_centroid_values[k], |
---|
| 1572 | sum(stage.vertex_values[k,:])/3) |
---|
| 1573 | |
---|
| 1574 | |
---|
| 1575 | #Also check that Python and C version produce the same |
---|
| 1576 | assert allclose (stage.vertex_values, |
---|
| 1577 | [[2,2,2], |
---|
| 1578 | [1.93333333, 2.03333333, 6.03333333], |
---|
| 1579 | [6.93333333, 4.53333333, 4.53333333], |
---|
| 1580 | [5.33333333, 5.33333333, 5.33333333]]) |
---|
| 1581 | |
---|
| 1582 | |
---|
| 1583 | |
---|
| 1584 | |
---|
| 1585 | def test_conservation_1(self): |
---|
| 1586 | """Test that stage is conserved globally |
---|
| 1587 | |
---|
| 1588 | This one uses a flat bed, reflective bdries and a suitable |
---|
| 1589 | initial condition |
---|
| 1590 | """ |
---|
| 1591 | from mesh_factory import rectangular |
---|
| 1592 | from Numeric import array |
---|
| 1593 | |
---|
| 1594 | #Create basic mesh |
---|
| 1595 | points, vertices, boundary = rectangular(6, 6) |
---|
| 1596 | |
---|
| 1597 | #Create shallow water domain |
---|
| 1598 | domain = Domain(points, vertices, boundary) |
---|
| 1599 | domain.smooth = False |
---|
| 1600 | domain.default_order=2 |
---|
| 1601 | |
---|
| 1602 | #IC |
---|
| 1603 | def x_slope(x, y): |
---|
| 1604 | return x/3 |
---|
| 1605 | |
---|
| 1606 | domain.set_quantity('elevation', 0) |
---|
| 1607 | domain.set_quantity('friction', 0) |
---|
| 1608 | domain.set_quantity('stage', x_slope) |
---|
| 1609 | |
---|
| 1610 | # Boundary conditions (reflective everywhere) |
---|
| 1611 | Br = Reflective_boundary(domain) |
---|
| 1612 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 1613 | |
---|
| 1614 | domain.check_integrity() |
---|
| 1615 | |
---|
| 1616 | #domain.visualise = True #If you want to take a sticky beak |
---|
| 1617 | |
---|
| 1618 | initial_volume = domain.quantities['stage'].get_integral() |
---|
| 1619 | initial_xmom = domain.quantities['xmomentum'].get_integral() |
---|
| 1620 | |
---|
| 1621 | #print initial_xmom |
---|
| 1622 | |
---|
| 1623 | #Evolution |
---|
| 1624 | for t in domain.evolve(yieldstep = 0.05, finaltime = 5.0): |
---|
| 1625 | volume = domain.quantities['stage'].get_integral() |
---|
| 1626 | assert allclose (volume, initial_volume) |
---|
| 1627 | |
---|
| 1628 | #I don't believe that the total momentum should be the same |
---|
| 1629 | #It starts with zero and ends with zero though |
---|
| 1630 | #xmom = domain.quantities['xmomentum'].get_integral() |
---|
| 1631 | #print xmom |
---|
| 1632 | #assert allclose (xmom, initial_xmom) |
---|
| 1633 | |
---|
| 1634 | os.remove(domain.filename + '.sww') |
---|
| 1635 | |
---|
| 1636 | |
---|
| 1637 | def test_conservation_2(self): |
---|
| 1638 | """Test that stage is conserved globally |
---|
| 1639 | |
---|
| 1640 | This one uses a slopy bed, reflective bdries and a suitable |
---|
| 1641 | initial condition |
---|
| 1642 | """ |
---|
| 1643 | from mesh_factory import rectangular |
---|
| 1644 | from Numeric import array |
---|
| 1645 | |
---|
| 1646 | #Create basic mesh |
---|
| 1647 | points, vertices, boundary = rectangular(6, 6) |
---|
| 1648 | |
---|
| 1649 | #Create shallow water domain |
---|
| 1650 | domain = Domain(points, vertices, boundary) |
---|
| 1651 | domain.smooth = False |
---|
| 1652 | domain.default_order=2 |
---|
| 1653 | |
---|
| 1654 | #IC |
---|
| 1655 | def x_slope(x, y): |
---|
| 1656 | return x/3 |
---|
| 1657 | |
---|
| 1658 | domain.set_quantity('elevation', x_slope) |
---|
| 1659 | domain.set_quantity('friction', 0) |
---|
| 1660 | domain.set_quantity('stage', 0.4) #Steady |
---|
| 1661 | |
---|
| 1662 | # Boundary conditions (reflective everywhere) |
---|
| 1663 | Br = Reflective_boundary(domain) |
---|
| 1664 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 1665 | |
---|
| 1666 | domain.check_integrity() |
---|
| 1667 | |
---|
| 1668 | #domain.visualise = True #If you want to take a sticky beak |
---|
| 1669 | |
---|
| 1670 | initial_volume = domain.quantities['stage'].get_integral() |
---|
| 1671 | initial_xmom = domain.quantities['xmomentum'].get_integral() |
---|
| 1672 | |
---|
| 1673 | #print initial_xmom |
---|
| 1674 | |
---|
| 1675 | #Evolution |
---|
| 1676 | for t in domain.evolve(yieldstep = 0.05, finaltime = 5.0): |
---|
| 1677 | volume = domain.quantities['stage'].get_integral() |
---|
| 1678 | assert allclose (volume, initial_volume) |
---|
| 1679 | |
---|
| 1680 | #FIXME: What would we expect from momentum |
---|
| 1681 | #xmom = domain.quantities['xmomentum'].get_integral() |
---|
| 1682 | #print xmom |
---|
| 1683 | #assert allclose (xmom, initial_xmom) |
---|
| 1684 | |
---|
| 1685 | os.remove(domain.filename + '.sww') |
---|
| 1686 | |
---|
| 1687 | def test_conservation_3(self): |
---|
| 1688 | """Test that stage is conserved globally |
---|
| 1689 | |
---|
| 1690 | This one uses a larger grid, convoluted bed, reflective bdries and a suitable |
---|
| 1691 | initial condition |
---|
| 1692 | """ |
---|
| 1693 | from mesh_factory import rectangular |
---|
| 1694 | from Numeric import array |
---|
| 1695 | |
---|
| 1696 | #Create basic mesh |
---|
| 1697 | points, vertices, boundary = rectangular(2, 1) |
---|
| 1698 | |
---|
| 1699 | #Create shallow water domain |
---|
| 1700 | domain = Domain(points, vertices, boundary) |
---|
| 1701 | domain.smooth = False |
---|
| 1702 | domain.default_order = 2 |
---|
| 1703 | domain.beta_h = 0.2 |
---|
| 1704 | domain.set_quantities_to_be_stored(['stage']) |
---|
| 1705 | |
---|
| 1706 | #IC |
---|
| 1707 | def x_slope(x, y): |
---|
| 1708 | z = 0*x |
---|
| 1709 | for i in range(len(x)): |
---|
| 1710 | if x[i] < 0.3: |
---|
| 1711 | z[i] = x[i]/3 |
---|
| 1712 | if 0.3 <= x[i] < 0.5: |
---|
| 1713 | z[i] = -0.5 |
---|
| 1714 | if 0.5 <= x[i] < 0.7: |
---|
| 1715 | z[i] = 0.39 |
---|
| 1716 | if 0.7 <= x[i]: |
---|
| 1717 | z[i] = x[i]/3 |
---|
| 1718 | return z |
---|
| 1719 | |
---|
| 1720 | |
---|
| 1721 | |
---|
| 1722 | domain.set_quantity('elevation', x_slope) |
---|
| 1723 | domain.set_quantity('friction', 0) |
---|
| 1724 | domain.set_quantity('stage', 0.4) #Steady |
---|
| 1725 | |
---|
| 1726 | # Boundary conditions (reflective everywhere) |
---|
| 1727 | Br = Reflective_boundary(domain) |
---|
| 1728 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 1729 | |
---|
| 1730 | domain.check_integrity() |
---|
| 1731 | |
---|
| 1732 | #domain.visualise = True #If you want to take a sticky beak |
---|
| 1733 | |
---|
| 1734 | initial_volume = domain.quantities['stage'].get_integral() |
---|
| 1735 | initial_xmom = domain.quantities['xmomentum'].get_integral() |
---|
| 1736 | |
---|
| 1737 | import copy |
---|
| 1738 | ref_centroid_values =\ |
---|
| 1739 | copy.copy(domain.quantities['stage'].centroid_values) |
---|
| 1740 | |
---|
| 1741 | #print 'ORG', domain.quantities['stage'].centroid_values |
---|
| 1742 | domain.distribute_to_vertices_and_edges() |
---|
| 1743 | |
---|
| 1744 | |
---|
| 1745 | #print domain.quantities['stage'].centroid_values |
---|
| 1746 | assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 1747 | ref_centroid_values) |
---|
| 1748 | |
---|
| 1749 | |
---|
| 1750 | #Check that initial limiter doesn't violate cons quan |
---|
| 1751 | assert allclose (domain.quantities['stage'].get_integral(), |
---|
| 1752 | initial_volume) |
---|
| 1753 | |
---|
| 1754 | #Evolution |
---|
| 1755 | for t in domain.evolve(yieldstep = 0.05, finaltime = 10): |
---|
| 1756 | volume = domain.quantities['stage'].get_integral() |
---|
| 1757 | #print t, volume, initial_volume |
---|
| 1758 | assert allclose (volume, initial_volume) |
---|
| 1759 | |
---|
| 1760 | os.remove(domain.filename + '.sww') |
---|
| 1761 | |
---|
| 1762 | def test_conservation_4(self): |
---|
| 1763 | """Test that stage is conserved globally |
---|
| 1764 | |
---|
| 1765 | This one uses a larger grid, convoluted bed, reflective bdries and a suitable |
---|
| 1766 | initial condition |
---|
| 1767 | """ |
---|
| 1768 | from mesh_factory import rectangular |
---|
| 1769 | from Numeric import array |
---|
| 1770 | |
---|
| 1771 | #Create basic mesh |
---|
| 1772 | points, vertices, boundary = rectangular(6, 6) |
---|
| 1773 | |
---|
| 1774 | #Create shallow water domain |
---|
| 1775 | domain = Domain(points, vertices, boundary) |
---|
| 1776 | domain.smooth = False |
---|
| 1777 | domain.default_order=2 |
---|
| 1778 | domain.beta_h = 0.0 |
---|
| 1779 | |
---|
| 1780 | #IC |
---|
| 1781 | def x_slope(x, y): |
---|
| 1782 | z = 0*x |
---|
| 1783 | for i in range(len(x)): |
---|
| 1784 | if x[i] < 0.3: |
---|
| 1785 | z[i] = x[i]/3 |
---|
| 1786 | if 0.3 <= x[i] < 0.5: |
---|
| 1787 | z[i] = -0.5 |
---|
| 1788 | if 0.5 <= x[i] < 0.7: |
---|
| 1789 | #z[i] = 0.3 #OK with beta == 0.2 |
---|
| 1790 | z[i] = 0.34 #OK with beta == 0.0 |
---|
| 1791 | #z[i] = 0.35#Fails after 80 timesteps with an error |
---|
| 1792 | #of the order 1.0e-5 |
---|
| 1793 | if 0.7 <= x[i]: |
---|
| 1794 | z[i] = x[i]/3 |
---|
| 1795 | return z |
---|
| 1796 | |
---|
| 1797 | |
---|
| 1798 | |
---|
| 1799 | domain.set_quantity('elevation', x_slope) |
---|
| 1800 | domain.set_quantity('friction', 0) |
---|
| 1801 | domain.set_quantity('stage', 0.4) #Steady |
---|
| 1802 | |
---|
| 1803 | # Boundary conditions (reflective everywhere) |
---|
| 1804 | Br = Reflective_boundary(domain) |
---|
| 1805 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 1806 | |
---|
| 1807 | domain.check_integrity() |
---|
| 1808 | |
---|
| 1809 | #domain.visualise = True #If you want to take a sticky beak |
---|
| 1810 | |
---|
| 1811 | initial_volume = domain.quantities['stage'].get_integral() |
---|
| 1812 | initial_xmom = domain.quantities['xmomentum'].get_integral() |
---|
| 1813 | |
---|
| 1814 | import copy |
---|
| 1815 | ref_centroid_values =\ |
---|
| 1816 | copy.copy(domain.quantities['stage'].centroid_values) |
---|
| 1817 | |
---|
| 1818 | #Test limiter by itself |
---|
| 1819 | domain.distribute_to_vertices_and_edges() |
---|
| 1820 | |
---|
| 1821 | #Check that initial limiter doesn't violate cons quan |
---|
| 1822 | assert allclose (domain.quantities['stage'].get_integral(), |
---|
| 1823 | initial_volume) |
---|
| 1824 | #NOTE: This would fail if any initial stage was less than the |
---|
| 1825 | #corresponding bed elevation - but that is reasonable. |
---|
| 1826 | |
---|
| 1827 | |
---|
| 1828 | #Evolution |
---|
| 1829 | for t in domain.evolve(yieldstep = 0.05, finaltime = 10.0): |
---|
| 1830 | volume = domain.quantities['stage'].get_integral() |
---|
| 1831 | |
---|
| 1832 | #print t, volume, initial_volume |
---|
| 1833 | |
---|
| 1834 | |
---|
| 1835 | #if not allclose (volume, initial_volume): |
---|
| 1836 | # print 't==4.05' |
---|
| 1837 | # for k in range(domain.number_of_elements): |
---|
| 1838 | # pass |
---|
| 1839 | # print domain.quantities['stage'].centroid_values[k] -\ |
---|
| 1840 | # ref_centroid_values[k] |
---|
| 1841 | |
---|
| 1842 | assert allclose (volume, initial_volume) |
---|
| 1843 | |
---|
| 1844 | |
---|
| 1845 | os.remove(domain.filename + '.sww') |
---|
| 1846 | |
---|
| 1847 | |
---|
| 1848 | def test_conservation_5(self): |
---|
| 1849 | """Test that momentum is conserved globally in |
---|
| 1850 | steady state scenario |
---|
| 1851 | |
---|
| 1852 | This one uses a slopy bed, dirichlet and reflective bdries |
---|
| 1853 | """ |
---|
| 1854 | from mesh_factory import rectangular |
---|
| 1855 | from Numeric import array |
---|
| 1856 | |
---|
| 1857 | #Create basic mesh |
---|
| 1858 | points, vertices, boundary = rectangular(6, 6) |
---|
| 1859 | |
---|
| 1860 | #Create shallow water domain |
---|
| 1861 | domain = Domain(points, vertices, boundary) |
---|
| 1862 | domain.smooth = False |
---|
| 1863 | domain.default_order=2 |
---|
| 1864 | |
---|
| 1865 | #IC |
---|
| 1866 | def x_slope(x, y): |
---|
| 1867 | return x/3 |
---|
| 1868 | |
---|
| 1869 | domain.set_quantity('elevation', x_slope) |
---|
| 1870 | domain.set_quantity('friction', 0) |
---|
| 1871 | domain.set_quantity('stage', 0.4) #Steady |
---|
| 1872 | |
---|
| 1873 | # Boundary conditions (reflective everywhere) |
---|
| 1874 | Br = Reflective_boundary(domain) |
---|
| 1875 | Bleft = Dirichlet_boundary([0.5,0,0]) |
---|
| 1876 | Bright = Dirichlet_boundary([0.1,0,0]) |
---|
| 1877 | domain.set_boundary({'left': Bleft, 'right': Bright, |
---|
| 1878 | 'top': Br, 'bottom': Br}) |
---|
| 1879 | |
---|
| 1880 | domain.check_integrity() |
---|
| 1881 | |
---|
| 1882 | #domain.visualise = True #If you want to take a sticky beak |
---|
| 1883 | |
---|
| 1884 | initial_volume = domain.quantities['stage'].get_integral() |
---|
| 1885 | initial_xmom = domain.quantities['xmomentum'].get_integral() |
---|
| 1886 | |
---|
| 1887 | |
---|
| 1888 | #Evolution |
---|
| 1889 | for t in domain.evolve(yieldstep = 0.05, finaltime = 15.0): |
---|
| 1890 | stage = domain.quantities['stage'].get_integral() |
---|
| 1891 | xmom = domain.quantities['xmomentum'].get_integral() |
---|
| 1892 | ymom = domain.quantities['ymomentum'].get_integral() |
---|
| 1893 | |
---|
| 1894 | if allclose(t, 6): #Steady state reached |
---|
| 1895 | steady_xmom = domain.quantities['xmomentum'].get_integral() |
---|
| 1896 | steady_ymom = domain.quantities['ymomentum'].get_integral() |
---|
| 1897 | steady_stage = domain.quantities['stage'].get_integral() |
---|
| 1898 | |
---|
| 1899 | if t > 6: |
---|
| 1900 | #print '%.2f %14.8f %14.8f' %(t, ymom, steady_ymom) |
---|
| 1901 | assert allclose(xmom, steady_xmom) |
---|
| 1902 | assert allclose(ymom, steady_ymom) |
---|
| 1903 | assert allclose(stage, steady_stage) |
---|
| 1904 | |
---|
| 1905 | |
---|
| 1906 | os.remove(domain.filename + '.sww') |
---|
| 1907 | |
---|
| 1908 | |
---|
| 1909 | |
---|
| 1910 | |
---|
| 1911 | |
---|
| 1912 | def test_conservation_real(self): |
---|
| 1913 | """Test that momentum is conserved globally |
---|
| 1914 | |
---|
| 1915 | Stephen finally made a test that revealed the problem. |
---|
| 1916 | This test failed with code prior to 25 July 2005 |
---|
| 1917 | """ |
---|
| 1918 | |
---|
| 1919 | yieldstep = 0.01 |
---|
| 1920 | finaltime = 0.05 |
---|
| 1921 | min_depth = 1.0e-2 |
---|
| 1922 | |
---|
| 1923 | |
---|
| 1924 | import sys |
---|
[3560] | 1925 | from os import sep; sys.path.append('..'+sep+'abstract_2d_finite_volumes') |
---|
[2526] | 1926 | from mesh_factory import rectangular |
---|
| 1927 | |
---|
| 1928 | |
---|
| 1929 | #Create shallow water domain |
---|
| 1930 | points, vertices, boundary = rectangular(10, 10, len1=500, len2=500) |
---|
| 1931 | domain = Domain(points, vertices, boundary) |
---|
| 1932 | domain.smooth = False |
---|
| 1933 | domain.visualise = False |
---|
| 1934 | domain.default_order = 1 |
---|
| 1935 | domain.minimum_allowed_height = min_depth |
---|
| 1936 | |
---|
| 1937 | # Set initial condition |
---|
| 1938 | class Set_IC: |
---|
| 1939 | """Set an initial condition with a constant value, for x0<x<x1 |
---|
| 1940 | """ |
---|
| 1941 | |
---|
| 1942 | def __init__(self, x0=0.25, x1=0.5, h=1.0): |
---|
| 1943 | self.x0 = x0 |
---|
| 1944 | self.x1 = x1 |
---|
| 1945 | self.h = h |
---|
| 1946 | |
---|
| 1947 | def __call__(self, x, y): |
---|
| 1948 | return self.h*((x>self.x0)&(x<self.x1)) |
---|
| 1949 | |
---|
| 1950 | |
---|
| 1951 | domain.set_quantity('stage', Set_IC(200.0,300.0,5.0)) |
---|
| 1952 | |
---|
| 1953 | |
---|
| 1954 | #Boundaries |
---|
| 1955 | R = Reflective_boundary(domain) |
---|
| 1956 | domain.set_boundary( {'left': R, 'right': R, 'top':R, 'bottom': R}) |
---|
| 1957 | |
---|
| 1958 | ref = domain.quantities['stage'].get_integral() |
---|
| 1959 | |
---|
| 1960 | # Evolution |
---|
| 1961 | for t in domain.evolve(yieldstep = yieldstep, finaltime = finaltime): |
---|
| 1962 | pass |
---|
| 1963 | #print 'Integral stage = ',\ |
---|
| 1964 | # domain.quantities['stage'].get_integral(),\ |
---|
| 1965 | # ' Time = ',domain.time |
---|
| 1966 | |
---|
| 1967 | |
---|
| 1968 | now = domain.quantities['stage'].get_integral() |
---|
| 1969 | |
---|
| 1970 | msg = 'Stage not conserved: was %f, now %f' %(ref, now) |
---|
| 1971 | assert allclose(ref, now), msg |
---|
| 1972 | |
---|
| 1973 | os.remove(domain.filename + '.sww') |
---|
| 1974 | |
---|
| 1975 | def test_second_order_flat_bed_onestep(self): |
---|
| 1976 | |
---|
| 1977 | from mesh_factory import rectangular |
---|
| 1978 | from Numeric import array |
---|
| 1979 | |
---|
| 1980 | #Create basic mesh |
---|
| 1981 | points, vertices, boundary = rectangular(6, 6) |
---|
| 1982 | |
---|
| 1983 | #Create shallow water domain |
---|
| 1984 | domain = Domain(points, vertices, boundary) |
---|
| 1985 | domain.smooth = False |
---|
| 1986 | domain.default_order=2 |
---|
| 1987 | |
---|
| 1988 | # Boundary conditions |
---|
| 1989 | Br = Reflective_boundary(domain) |
---|
| 1990 | Bd = Dirichlet_boundary([0.1, 0., 0.]) |
---|
| 1991 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 1992 | |
---|
| 1993 | domain.check_integrity() |
---|
| 1994 | |
---|
| 1995 | #Evolution |
---|
| 1996 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.05): |
---|
| 1997 | pass# domain.write_time() |
---|
| 1998 | |
---|
[3560] | 1999 | #Data from earlier version of abstract_2d_finite_volumes |
---|
[2526] | 2000 | assert allclose(domain.min_timestep, 0.0396825396825) |
---|
| 2001 | assert allclose(domain.max_timestep, 0.0396825396825) |
---|
| 2002 | |
---|
| 2003 | assert allclose(domain.quantities['stage'].centroid_values[:12], |
---|
| 2004 | [0.00171396, 0.02656103, 0.00241523, 0.02656103, |
---|
| 2005 | 0.00241523, 0.02656103, 0.00241523, 0.02656103, |
---|
| 2006 | 0.00241523, 0.02656103, 0.00241523, 0.0272623]) |
---|
| 2007 | |
---|
| 2008 | domain.distribute_to_vertices_and_edges() |
---|
| 2009 | assert allclose(domain.quantities['stage'].vertex_values[:12,0], |
---|
| 2010 | [0.0001714, 0.02656103, 0.00024152, |
---|
| 2011 | 0.02656103, 0.00024152, 0.02656103, |
---|
| 2012 | 0.00024152, 0.02656103, 0.00024152, |
---|
| 2013 | 0.02656103, 0.00024152, 0.0272623]) |
---|
| 2014 | |
---|
| 2015 | assert allclose(domain.quantities['stage'].vertex_values[:12,1], |
---|
| 2016 | [0.00315012, 0.02656103, 0.00024152, 0.02656103, |
---|
| 2017 | 0.00024152, 0.02656103, 0.00024152, 0.02656103, |
---|
| 2018 | 0.00024152, 0.02656103, 0.00040506, 0.0272623]) |
---|
| 2019 | |
---|
| 2020 | assert allclose(domain.quantities['stage'].vertex_values[:12,2], |
---|
| 2021 | [0.00182037, 0.02656103, 0.00676264, |
---|
| 2022 | 0.02656103, 0.00676264, 0.02656103, |
---|
| 2023 | 0.00676264, 0.02656103, 0.00676264, |
---|
| 2024 | 0.02656103, 0.0065991, 0.0272623]) |
---|
| 2025 | |
---|
| 2026 | assert allclose(domain.quantities['xmomentum'].centroid_values[:12], |
---|
| 2027 | [0.00113961, 0.01302432, 0.00148672, |
---|
| 2028 | 0.01302432, 0.00148672, 0.01302432, |
---|
| 2029 | 0.00148672, 0.01302432, 0.00148672 , |
---|
| 2030 | 0.01302432, 0.00148672, 0.01337143]) |
---|
| 2031 | |
---|
| 2032 | assert allclose(domain.quantities['ymomentum'].centroid_values[:12], |
---|
| 2033 | [-2.91240050e-004 , 1.22721531e-004, |
---|
| 2034 | -1.22721531e-004, 1.22721531e-004 , |
---|
| 2035 | -1.22721531e-004, 1.22721531e-004, |
---|
| 2036 | -1.22721531e-004 , 1.22721531e-004, |
---|
| 2037 | -1.22721531e-004, 1.22721531e-004, |
---|
| 2038 | -1.22721531e-004, -4.57969873e-005]) |
---|
| 2039 | |
---|
| 2040 | os.remove(domain.filename + '.sww') |
---|
| 2041 | |
---|
| 2042 | |
---|
| 2043 | def test_second_order_flat_bed_moresteps(self): |
---|
| 2044 | |
---|
| 2045 | from mesh_factory import rectangular |
---|
| 2046 | from Numeric import array |
---|
| 2047 | |
---|
| 2048 | #Create basic mesh |
---|
| 2049 | points, vertices, boundary = rectangular(6, 6) |
---|
| 2050 | |
---|
| 2051 | #Create shallow water domain |
---|
| 2052 | domain = Domain(points, vertices, boundary) |
---|
| 2053 | domain.smooth = False |
---|
| 2054 | domain.default_order=2 |
---|
| 2055 | |
---|
| 2056 | # Boundary conditions |
---|
| 2057 | Br = Reflective_boundary(domain) |
---|
| 2058 | Bd = Dirichlet_boundary([0.1, 0., 0.]) |
---|
| 2059 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2060 | |
---|
| 2061 | domain.check_integrity() |
---|
| 2062 | |
---|
| 2063 | #Evolution |
---|
| 2064 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.1): |
---|
| 2065 | pass |
---|
| 2066 | |
---|
[3560] | 2067 | #Data from earlier version of abstract_2d_finite_volumes |
---|
[2526] | 2068 | #assert allclose(domain.min_timestep, 0.0396825396825) |
---|
| 2069 | #assert allclose(domain.max_timestep, 0.0396825396825) |
---|
| 2070 | #print domain.quantities['stage'].centroid_values |
---|
| 2071 | |
---|
| 2072 | os.remove(domain.filename + '.sww') |
---|
| 2073 | |
---|
| 2074 | |
---|
| 2075 | def test_flatbed_first_order(self): |
---|
| 2076 | from mesh_factory import rectangular |
---|
| 2077 | from Numeric import array |
---|
| 2078 | |
---|
| 2079 | #Create basic mesh |
---|
| 2080 | N = 8 |
---|
| 2081 | points, vertices, boundary = rectangular(N, N) |
---|
| 2082 | |
---|
| 2083 | #Create shallow water domain |
---|
| 2084 | domain = Domain(points, vertices, boundary) |
---|
| 2085 | domain.smooth = False |
---|
| 2086 | domain.visualise = False |
---|
| 2087 | domain.default_order=1 |
---|
| 2088 | |
---|
| 2089 | # Boundary conditions |
---|
| 2090 | Br = Reflective_boundary(domain) |
---|
| 2091 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
| 2092 | |
---|
| 2093 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2094 | domain.check_integrity() |
---|
| 2095 | |
---|
| 2096 | |
---|
| 2097 | #Evolution |
---|
| 2098 | for t in domain.evolve(yieldstep = 0.02, finaltime = 0.5): |
---|
| 2099 | pass |
---|
| 2100 | #domain.write_time() |
---|
| 2101 | |
---|
| 2102 | #FIXME: These numbers were from version before 25/10 |
---|
| 2103 | #assert allclose(domain.min_timestep, 0.0140413643926) |
---|
| 2104 | #assert allclose(domain.max_timestep, 0.0140947355753) |
---|
| 2105 | |
---|
| 2106 | for i in range(3): |
---|
| 2107 | #assert allclose(domain.quantities['stage'].edge_values[:4,i], |
---|
| 2108 | # [0.10730244,0.12337617,0.11200126,0.12605666]) |
---|
| 2109 | |
---|
| 2110 | assert allclose(domain.quantities['xmomentum'].edge_values[:4,i], |
---|
| 2111 | [0.07610894,0.06901572,0.07284461,0.06819712]) |
---|
| 2112 | |
---|
| 2113 | #assert allclose(domain.quantities['ymomentum'].edge_values[:4,i], |
---|
| 2114 | # [-0.0060238, -0.00157404, -0.00309633, -0.0001637]) |
---|
| 2115 | |
---|
| 2116 | |
---|
| 2117 | os.remove(domain.filename + '.sww') |
---|
| 2118 | |
---|
| 2119 | def test_flatbed_second_order(self): |
---|
| 2120 | from mesh_factory import rectangular |
---|
| 2121 | from Numeric import array |
---|
| 2122 | |
---|
| 2123 | #Create basic mesh |
---|
| 2124 | N = 8 |
---|
| 2125 | points, vertices, boundary = rectangular(N, N) |
---|
| 2126 | |
---|
| 2127 | #Create shallow water domain |
---|
| 2128 | domain = Domain(points, vertices, boundary) |
---|
| 2129 | domain.smooth = False |
---|
| 2130 | domain.visualise = False |
---|
| 2131 | domain.default_order=2 |
---|
| 2132 | #domain.minimum_allowed_height = 0.0 #Makes it like the 'oldstyle' balance |
---|
| 2133 | |
---|
| 2134 | # Boundary conditions |
---|
| 2135 | Br = Reflective_boundary(domain) |
---|
| 2136 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
| 2137 | |
---|
| 2138 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2139 | domain.check_integrity() |
---|
| 2140 | |
---|
| 2141 | #Evolution |
---|
| 2142 | for t in domain.evolve(yieldstep = 0.01, finaltime = 0.03): |
---|
| 2143 | pass |
---|
| 2144 | |
---|
| 2145 | |
---|
| 2146 | assert allclose(domain.min_timestep, 0.0210448446782) |
---|
| 2147 | assert allclose(domain.max_timestep, 0.0210448446782) |
---|
| 2148 | |
---|
| 2149 | #print domain.quantities['stage'].vertex_values[:4,0] |
---|
| 2150 | #print domain.quantities['xmomentum'].vertex_values[:4,0] |
---|
| 2151 | #print domain.quantities['ymomentum'].vertex_values[:4,0] |
---|
| 2152 | |
---|
| 2153 | #FIXME: These numbers were from version before 25/10 |
---|
| 2154 | #assert allclose(domain.quantities['stage'].vertex_values[:4,0], |
---|
| 2155 | # [0.00101913,0.05352143,0.00104852,0.05354394]) |
---|
| 2156 | |
---|
[2565] | 2157 | #FIXME: These numbers were from version before 21/3/6 - |
---|
| 2158 | #could be recreated by setting maximum_allowed_speed to 0 maybe |
---|
| 2159 | #assert allclose(domain.quantities['xmomentum'].vertex_values[:4,0], |
---|
| 2160 | # [ 0.00064835, 0.03685719, 0.00085073, 0.03687313]) |
---|
| 2161 | |
---|
[2526] | 2162 | assert allclose(domain.quantities['xmomentum'].vertex_values[:4,0], |
---|
[2565] | 2163 | [ 0.00090581, 0.03685719, 0.00088303, 0.03687313]) |
---|
| 2164 | |
---|
| 2165 | |
---|
[2526] | 2166 | |
---|
| 2167 | #assert allclose(domain.quantities['xmomentum'].vertex_values[:4,0], |
---|
| 2168 | # [0.00090581,0.03685719,0.00088303,0.03687313]) |
---|
| 2169 | |
---|
| 2170 | assert allclose(domain.quantities['ymomentum'].vertex_values[:4,0], |
---|
| 2171 | [-0.00139463,0.0006156,-0.00060364,0.00061827]) |
---|
| 2172 | |
---|
| 2173 | |
---|
| 2174 | os.remove(domain.filename + '.sww') |
---|
| 2175 | |
---|
[2566] | 2176 | |
---|
| 2177 | def test_flatbed_second_order_vmax_0(self): |
---|
| 2178 | from mesh_factory import rectangular |
---|
| 2179 | from Numeric import array |
---|
| 2180 | |
---|
| 2181 | #Create basic mesh |
---|
| 2182 | N = 8 |
---|
| 2183 | points, vertices, boundary = rectangular(N, N) |
---|
| 2184 | |
---|
| 2185 | #Create shallow water domain |
---|
| 2186 | domain = Domain(points, vertices, boundary) |
---|
| 2187 | domain.smooth = False |
---|
| 2188 | domain.visualise = False |
---|
| 2189 | domain.default_order=2 |
---|
| 2190 | domain.maximum_allowed_speed = 0.0 #Makes it like the 'oldstyle' |
---|
| 2191 | |
---|
| 2192 | # Boundary conditions |
---|
| 2193 | Br = Reflective_boundary(domain) |
---|
| 2194 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
| 2195 | |
---|
| 2196 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2197 | domain.check_integrity() |
---|
| 2198 | |
---|
| 2199 | #Evolution |
---|
| 2200 | for t in domain.evolve(yieldstep = 0.01, finaltime = 0.03): |
---|
| 2201 | pass |
---|
| 2202 | |
---|
| 2203 | |
---|
| 2204 | assert allclose(domain.min_timestep, 0.0210448446782) |
---|
| 2205 | assert allclose(domain.max_timestep, 0.0210448446782) |
---|
| 2206 | |
---|
| 2207 | #FIXME: These numbers were from version before 21/3/6 - |
---|
| 2208 | #could be recreated by setting maximum_allowed_speed to 0 maybe |
---|
| 2209 | assert allclose(domain.quantities['xmomentum'].vertex_values[:4,0], |
---|
| 2210 | [ 0.00064835, 0.03685719, 0.00085073, 0.03687313]) |
---|
| 2211 | |
---|
| 2212 | |
---|
| 2213 | assert allclose(domain.quantities['ymomentum'].vertex_values[:4,0], |
---|
| 2214 | [-0.00139463,0.0006156,-0.00060364,0.00061827]) |
---|
| 2215 | |
---|
| 2216 | |
---|
| 2217 | os.remove(domain.filename + '.sww') |
---|
| 2218 | |
---|
| 2219 | |
---|
| 2220 | |
---|
[2526] | 2221 | def test_flatbed_second_order_distribute(self): |
---|
[3560] | 2222 | #Use real data from anuga.abstract_2d_finite_volumes 2 |
---|
[2526] | 2223 | #painfully setup and extracted. |
---|
| 2224 | from mesh_factory import rectangular |
---|
| 2225 | from Numeric import array |
---|
| 2226 | |
---|
| 2227 | #Create basic mesh |
---|
| 2228 | N = 8 |
---|
| 2229 | points, vertices, boundary = rectangular(N, N) |
---|
| 2230 | |
---|
| 2231 | #Create shallow water domain |
---|
| 2232 | domain = Domain(points, vertices, boundary) |
---|
| 2233 | domain.smooth = False |
---|
| 2234 | domain.visualise = False |
---|
| 2235 | domain.default_order=domain.order=2 |
---|
| 2236 | |
---|
| 2237 | # Boundary conditions |
---|
| 2238 | Br = Reflective_boundary(domain) |
---|
| 2239 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
| 2240 | |
---|
| 2241 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2242 | domain.check_integrity() |
---|
| 2243 | |
---|
| 2244 | |
---|
| 2245 | |
---|
| 2246 | for V in [False, True]: |
---|
| 2247 | if V: |
---|
| 2248 | #Set centroids as if system had been evolved |
---|
| 2249 | L = zeros(2*N*N, Float) |
---|
| 2250 | L[:32] = [7.21205592e-003, 5.35214298e-002, 1.00910824e-002, |
---|
| 2251 | 5.35439433e-002, 1.00910824e-002, 5.35439433e-002, |
---|
| 2252 | 1.00910824e-002, 5.35439433e-002, 1.00910824e-002, |
---|
| 2253 | 5.35439433e-002, 1.00910824e-002, 5.35439433e-002, |
---|
| 2254 | 1.00910824e-002, 5.35393928e-002, 1.02344264e-002, |
---|
| 2255 | 5.59605058e-002, 0.00000000e+000, 3.31027800e-004, |
---|
| 2256 | 0.00000000e+000, 4.37962142e-005, 0.00000000e+000, |
---|
| 2257 | 4.37962142e-005, 0.00000000e+000, 4.37962142e-005, |
---|
| 2258 | 0.00000000e+000, 4.37962142e-005, 0.00000000e+000, |
---|
| 2259 | 4.37962142e-005, 0.00000000e+000, 4.37962142e-005, |
---|
| 2260 | 0.00000000e+000, 5.57305948e-005] |
---|
| 2261 | |
---|
| 2262 | X = zeros(2*N*N, Float) |
---|
| 2263 | X[:32] = [6.48351607e-003, 3.68571894e-002, 8.50733285e-003, |
---|
| 2264 | 3.68731327e-002, 8.50733285e-003, 3.68731327e-002, |
---|
| 2265 | 8.50733285e-003, 3.68731327e-002, 8.50733285e-003, |
---|
| 2266 | 3.68731327e-002, 8.50733285e-003, 3.68731327e-002, |
---|
| 2267 | 8.50733285e-003, 3.68693861e-002, 8.65220973e-003, |
---|
| 2268 | 3.85055387e-002, 0.00000000e+000, 2.86060840e-004, |
---|
| 2269 | 0.00000000e+000, 3.58905503e-005, 0.00000000e+000, |
---|
| 2270 | 3.58905503e-005, 0.00000000e+000, 3.58905503e-005, |
---|
| 2271 | 0.00000000e+000, 3.58905503e-005, 0.00000000e+000, |
---|
| 2272 | 3.58905503e-005, 0.00000000e+000, 3.58905503e-005, |
---|
| 2273 | 0.00000000e+000, 4.57662812e-005] |
---|
| 2274 | |
---|
| 2275 | Y = zeros(2*N*N, Float) |
---|
| 2276 | Y[:32]=[-1.39463104e-003, 6.15600298e-004, -6.03637382e-004, |
---|
| 2277 | 6.18272251e-004, -6.03637382e-004, 6.18272251e-004, |
---|
| 2278 | -6.03637382e-004, 6.18272251e-004, -6.03637382e-004, |
---|
| 2279 | 6.18272251e-004, -6.03637382e-004, 6.18272251e-004, |
---|
| 2280 | -6.03637382e-004, 6.18599320e-004, -6.74622797e-004, |
---|
| 2281 | -1.48934756e-004, 0.00000000e+000, -5.35079969e-005, |
---|
| 2282 | 0.00000000e+000, -2.57264987e-005, 0.00000000e+000, |
---|
| 2283 | -2.57264987e-005, 0.00000000e+000, -2.57264987e-005, |
---|
| 2284 | 0.00000000e+000, -2.57264987e-005, 0.00000000e+000, |
---|
| 2285 | -2.57264987e-005, 0.00000000e+000, -2.57264987e-005, |
---|
| 2286 | 0.00000000e+000, -2.57635178e-005] |
---|
| 2287 | |
---|
| 2288 | |
---|
| 2289 | domain.set_quantity('stage', L, location='centroids') |
---|
| 2290 | domain.set_quantity('xmomentum', X, location='centroids') |
---|
| 2291 | domain.set_quantity('ymomentum', Y, location='centroids') |
---|
| 2292 | |
---|
| 2293 | domain.check_integrity() |
---|
| 2294 | else: |
---|
| 2295 | #Evolution |
---|
| 2296 | for t in domain.evolve(yieldstep = 0.01, finaltime = 0.03): |
---|
| 2297 | pass |
---|
| 2298 | assert allclose(domain.min_timestep, 0.0210448446782) |
---|
| 2299 | assert allclose(domain.max_timestep, 0.0210448446782) |
---|
| 2300 | |
---|
| 2301 | |
---|
| 2302 | #Centroids were correct but not vertices. |
---|
| 2303 | #Hence the check of distribute below. |
---|
| 2304 | assert allclose(domain.quantities['stage'].centroid_values[:4], |
---|
| 2305 | [0.00721206,0.05352143,0.01009108,0.05354394]) |
---|
| 2306 | |
---|
| 2307 | assert allclose(domain.quantities['xmomentum'].centroid_values[:4], |
---|
| 2308 | [0.00648352,0.03685719,0.00850733,0.03687313]) |
---|
| 2309 | |
---|
| 2310 | assert allclose(domain.quantities['ymomentum'].centroid_values[:4], |
---|
| 2311 | [-0.00139463,0.0006156,-0.00060364,0.00061827]) |
---|
| 2312 | |
---|
| 2313 | #print 'C17=', domain.quantities['xmomentum'].centroid_values[17] |
---|
| 2314 | #print 'C19=', domain.quantities['xmomentum'].centroid_values[19] |
---|
| 2315 | |
---|
| 2316 | #assert allclose(domain.quantities['xmomentum'].centroid_values[17],0.00028606084) |
---|
| 2317 | ##print domain.quantities['xmomentum'].centroid_values[17], V |
---|
| 2318 | ##print |
---|
| 2319 | if not V: |
---|
[2565] | 2320 | #FIXME: These numbers were from version before 21/3/6 - |
---|
| 2321 | #could be recreated by setting maximum_allowed_speed to 0 maybe |
---|
| 2322 | |
---|
| 2323 | #assert allclose(domain.quantities['xmomentum'].centroid_values[17], 0.0) |
---|
| 2324 | assert allclose(domain.quantities['xmomentum'].centroid_values[17], 0.000286060839592) |
---|
| 2325 | |
---|
[2526] | 2326 | else: |
---|
| 2327 | assert allclose(domain.quantities['xmomentum'].centroid_values[17], 0.00028606084) |
---|
| 2328 | |
---|
| 2329 | import copy |
---|
| 2330 | XX = copy.copy(domain.quantities['xmomentum'].centroid_values) |
---|
| 2331 | assert allclose(domain.quantities['xmomentum'].centroid_values, XX) |
---|
| 2332 | |
---|
| 2333 | domain.distribute_to_vertices_and_edges() |
---|
| 2334 | |
---|
| 2335 | #assert allclose(domain.quantities['xmomentum'].centroid_values, XX) |
---|
| 2336 | |
---|
[2565] | 2337 | #assert allclose(domain.quantities['xmomentum'].centroid_values[17], |
---|
| 2338 | # 0.0) |
---|
| 2339 | assert allclose(domain.quantities['xmomentum'].centroid_values[17], 0.000286060839592) |
---|
[2526] | 2340 | |
---|
| 2341 | |
---|
| 2342 | #FIXME: These numbers were from version before 25/10 |
---|
| 2343 | #assert allclose(domain.quantities['stage'].vertex_values[:4,0], |
---|
| 2344 | # [0.00101913,0.05352143,0.00104852,0.05354394]) |
---|
| 2345 | |
---|
| 2346 | assert allclose(domain.quantities['ymomentum'].vertex_values[:4,0], |
---|
| 2347 | [-0.00139463,0.0006156,-0.00060364,0.00061827]) |
---|
| 2348 | |
---|
| 2349 | |
---|
| 2350 | assert allclose(domain.quantities['xmomentum'].vertex_values[:4,0], |
---|
[2565] | 2351 | [0.00090581,0.03685719,0.00088303,0.03687313]) |
---|
[2526] | 2352 | |
---|
| 2353 | |
---|
| 2354 | #NB NO longer relvant: |
---|
| 2355 | |
---|
| 2356 | #This was the culprit. First triangles vertex 0 had an |
---|
| 2357 | #x-momentum of 0.0064835 instead of 0.00090581 and |
---|
| 2358 | #third triangle had 0.00850733 instead of 0.00088303 |
---|
| 2359 | #print domain.quantities['xmomentum'].vertex_values[:4,0] |
---|
| 2360 | |
---|
| 2361 | #print domain.quantities['xmomentum'].vertex_values[:4,0] |
---|
| 2362 | #assert allclose(domain.quantities['xmomentum'].vertex_values[:4,0], |
---|
| 2363 | # [0.00090581,0.03685719,0.00088303,0.03687313]) |
---|
| 2364 | |
---|
| 2365 | os.remove(domain.filename + '.sww') |
---|
| 2366 | |
---|
| 2367 | |
---|
| 2368 | |
---|
| 2369 | def test_bedslope_problem_first_order(self): |
---|
| 2370 | |
---|
| 2371 | from mesh_factory import rectangular |
---|
| 2372 | from Numeric import array |
---|
| 2373 | |
---|
| 2374 | #Create basic mesh |
---|
| 2375 | points, vertices, boundary = rectangular(6, 6) |
---|
| 2376 | |
---|
| 2377 | #Create shallow water domain |
---|
| 2378 | domain = Domain(points, vertices, boundary) |
---|
| 2379 | domain.smooth = False |
---|
| 2380 | domain.default_order=1 |
---|
| 2381 | |
---|
| 2382 | #Bed-slope and friction |
---|
| 2383 | def x_slope(x, y): |
---|
| 2384 | return -x/3 |
---|
| 2385 | |
---|
| 2386 | domain.set_quantity('elevation', x_slope) |
---|
| 2387 | |
---|
| 2388 | # Boundary conditions |
---|
| 2389 | Br = Reflective_boundary(domain) |
---|
| 2390 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2391 | |
---|
| 2392 | #Initial condition |
---|
| 2393 | domain.set_quantity('stage', Constant_height(x_slope, 0.05)) |
---|
| 2394 | domain.check_integrity() |
---|
| 2395 | |
---|
| 2396 | #Evolution |
---|
| 2397 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.05): |
---|
| 2398 | pass# domain.write_time() |
---|
| 2399 | |
---|
| 2400 | assert allclose(domain.min_timestep, 0.050010003001) |
---|
| 2401 | assert allclose(domain.max_timestep, 0.050010003001) |
---|
| 2402 | |
---|
| 2403 | |
---|
| 2404 | os.remove(domain.filename + '.sww') |
---|
| 2405 | |
---|
| 2406 | def test_bedslope_problem_first_order_moresteps(self): |
---|
| 2407 | |
---|
| 2408 | from mesh_factory import rectangular |
---|
| 2409 | from Numeric import array |
---|
| 2410 | |
---|
| 2411 | #Create basic mesh |
---|
| 2412 | points, vertices, boundary = rectangular(6, 6) |
---|
| 2413 | |
---|
| 2414 | #Create shallow water domain |
---|
| 2415 | domain = Domain(points, vertices, boundary) |
---|
| 2416 | domain.smooth = False |
---|
| 2417 | domain.default_order=1 |
---|
| 2418 | domain.beta_h = 0.0 #Use first order in h-limiter |
---|
| 2419 | |
---|
| 2420 | #Bed-slope and friction |
---|
| 2421 | def x_slope(x, y): |
---|
| 2422 | return -x/3 |
---|
| 2423 | |
---|
| 2424 | domain.set_quantity('elevation', x_slope) |
---|
| 2425 | |
---|
| 2426 | # Boundary conditions |
---|
| 2427 | Br = Reflective_boundary(domain) |
---|
| 2428 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2429 | |
---|
| 2430 | #Initial condition |
---|
| 2431 | domain.set_quantity('stage', Constant_height(x_slope, 0.05)) |
---|
| 2432 | domain.check_integrity() |
---|
| 2433 | |
---|
| 2434 | #Evolution |
---|
| 2435 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.5): |
---|
| 2436 | pass# domain.write_time() |
---|
| 2437 | |
---|
[3560] | 2438 | #Data from earlier version of abstract_2d_finite_volumes |
---|
[2526] | 2439 | #print domain.quantities['stage'].centroid_values |
---|
| 2440 | |
---|
| 2441 | assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 2442 | [-0.02998628, -0.01520652, -0.03043492, |
---|
| 2443 | -0.0149132, -0.03004706, -0.01476251, |
---|
| 2444 | -0.0298215, -0.01467976, -0.02988158, |
---|
| 2445 | -0.01474662, -0.03036161, -0.01442995, |
---|
| 2446 | -0.07624583, -0.06297061, -0.07733792, |
---|
| 2447 | -0.06342237, -0.07695439, -0.06289595, |
---|
| 2448 | -0.07635559, -0.0626065, -0.07633628, |
---|
| 2449 | -0.06280072, -0.07739632, -0.06386738, |
---|
| 2450 | -0.12161738, -0.11028239, -0.1223796, |
---|
| 2451 | -0.11095953, -0.12189744, -0.11048616, |
---|
| 2452 | -0.12074535, -0.10987605, -0.12014311, |
---|
| 2453 | -0.10976691, -0.12096859, -0.11087692, |
---|
| 2454 | -0.16868259, -0.15868061, -0.16801135, |
---|
| 2455 | -0.1588003, -0.16674343, -0.15813323, |
---|
| 2456 | -0.16457595, -0.15693826, -0.16281096, |
---|
| 2457 | -0.15585154, -0.16283873, -0.15540068, |
---|
| 2458 | -0.17450362, -0.19919913, -0.18062882, |
---|
| 2459 | -0.19764131, -0.17783111, -0.19407213, |
---|
| 2460 | -0.1736915, -0.19053624, -0.17228678, |
---|
| 2461 | -0.19105634, -0.17920133, -0.1968828, |
---|
| 2462 | -0.14244395, -0.14604641, -0.14473537, |
---|
| 2463 | -0.1506107, -0.14510055, -0.14919522, |
---|
| 2464 | -0.14175896, -0.14560798, -0.13911658, |
---|
| 2465 | -0.14439383, -0.13924047, -0.14829043]) |
---|
| 2466 | |
---|
| 2467 | os.remove(domain.filename + '.sww') |
---|
| 2468 | |
---|
| 2469 | def test_bedslope_problem_second_order_one_step(self): |
---|
| 2470 | |
---|
| 2471 | from mesh_factory import rectangular |
---|
| 2472 | from Numeric import array |
---|
| 2473 | |
---|
| 2474 | #Create basic mesh |
---|
| 2475 | points, vertices, boundary = rectangular(6, 6) |
---|
| 2476 | |
---|
| 2477 | #Create shallow water domain |
---|
| 2478 | domain = Domain(points, vertices, boundary) |
---|
| 2479 | domain.smooth = False |
---|
| 2480 | domain.default_order=2 |
---|
| 2481 | |
---|
| 2482 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
| 2483 | def x_slope(x, y): |
---|
| 2484 | return -x/3 |
---|
| 2485 | |
---|
| 2486 | domain.set_quantity('elevation', x_slope) |
---|
| 2487 | |
---|
| 2488 | # Boundary conditions |
---|
| 2489 | Br = Reflective_boundary(domain) |
---|
| 2490 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2491 | |
---|
| 2492 | #Initial condition |
---|
| 2493 | domain.set_quantity('stage', Constant_height(x_slope, 0.05)) |
---|
| 2494 | domain.check_integrity() |
---|
| 2495 | |
---|
| 2496 | assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 2497 | [0.01296296, 0.03148148, 0.01296296, |
---|
| 2498 | 0.03148148, 0.01296296, 0.03148148, |
---|
| 2499 | 0.01296296, 0.03148148, 0.01296296, |
---|
| 2500 | 0.03148148, 0.01296296, 0.03148148, |
---|
| 2501 | -0.04259259, -0.02407407, -0.04259259, |
---|
| 2502 | -0.02407407, -0.04259259, -0.02407407, |
---|
| 2503 | -0.04259259, -0.02407407, -0.04259259, |
---|
| 2504 | -0.02407407, -0.04259259, -0.02407407, |
---|
| 2505 | -0.09814815, -0.07962963, -0.09814815, |
---|
| 2506 | -0.07962963, -0.09814815, -0.07962963, |
---|
| 2507 | -0.09814815, -0.07962963, -0.09814815, |
---|
| 2508 | -0.07962963, -0.09814815, -0.07962963, |
---|
| 2509 | -0.1537037 , -0.13518519, -0.1537037, |
---|
| 2510 | -0.13518519, -0.1537037, -0.13518519, |
---|
| 2511 | -0.1537037 , -0.13518519, -0.1537037, |
---|
| 2512 | -0.13518519, -0.1537037, -0.13518519, |
---|
| 2513 | -0.20925926, -0.19074074, -0.20925926, |
---|
| 2514 | -0.19074074, -0.20925926, -0.19074074, |
---|
| 2515 | -0.20925926, -0.19074074, -0.20925926, |
---|
| 2516 | -0.19074074, -0.20925926, -0.19074074, |
---|
| 2517 | -0.26481481, -0.2462963, -0.26481481, |
---|
| 2518 | -0.2462963, -0.26481481, -0.2462963, |
---|
| 2519 | -0.26481481, -0.2462963, -0.26481481, |
---|
| 2520 | -0.2462963, -0.26481481, -0.2462963]) |
---|
| 2521 | |
---|
| 2522 | |
---|
| 2523 | #print domain.quantities['stage'].extrapolate_second_order() |
---|
| 2524 | #domain.distribute_to_vertices_and_edges() |
---|
| 2525 | #print domain.quantities['stage'].vertex_values[:,0] |
---|
| 2526 | |
---|
| 2527 | #Evolution |
---|
| 2528 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.05): |
---|
| 2529 | #domain.write_time() |
---|
| 2530 | pass |
---|
| 2531 | |
---|
| 2532 | |
---|
| 2533 | #print domain.quantities['stage'].centroid_values |
---|
| 2534 | assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 2535 | [0.01290985, 0.02356019, 0.01619096, 0.02356019, 0.01619096, |
---|
| 2536 | 0.02356019, 0.01619096, 0.02356019, 0.01619096, 0.02356019, |
---|
| 2537 | 0.01619096, 0.0268413, -0.04411074, -0.0248011, -0.04186556, |
---|
| 2538 | -0.0248011, -0.04186556, -0.0248011, -0.04186556, -0.0248011, |
---|
| 2539 | -0.04186556, -0.0248011, -0.04186556, -0.02255593, |
---|
| 2540 | -0.09966629, -0.08035666, -0.09742112, -0.08035666, |
---|
| 2541 | -0.09742112, -0.08035666, -0.09742112, -0.08035666, |
---|
| 2542 | -0.09742112, -0.08035666, -0.09742112, -0.07811149, |
---|
| 2543 | -0.15522185, -0.13591222, -0.15297667, -0.13591222, |
---|
| 2544 | -0.15297667, -0.13591222, -0.15297667, -0.13591222, |
---|
| 2545 | -0.15297667, -0.13591222, -0.15297667, -0.13366704, |
---|
| 2546 | -0.2107774, -0.19146777, -0.20853223, -0.19146777, |
---|
| 2547 | -0.20853223, -0.19146777, -0.20853223, -0.19146777, |
---|
| 2548 | -0.20853223, -0.19146777, -0.20853223, -0.1892226, |
---|
| 2549 | -0.26120669, -0.24776246, -0.25865535, -0.24776246, |
---|
| 2550 | -0.25865535, -0.24776246, -0.25865535, -0.24776246, |
---|
| 2551 | -0.25865535, -0.24776246, -0.25865535, -0.24521113]) |
---|
| 2552 | |
---|
| 2553 | os.remove(domain.filename + '.sww') |
---|
| 2554 | |
---|
| 2555 | def test_bedslope_problem_second_order_two_steps(self): |
---|
| 2556 | |
---|
| 2557 | from mesh_factory import rectangular |
---|
| 2558 | from Numeric import array |
---|
| 2559 | |
---|
| 2560 | #Create basic mesh |
---|
| 2561 | points, vertices, boundary = rectangular(6, 6) |
---|
| 2562 | |
---|
| 2563 | #Create shallow water domain |
---|
| 2564 | domain = Domain(points, vertices, boundary) |
---|
| 2565 | domain.smooth = False |
---|
| 2566 | domain.default_order=2 |
---|
| 2567 | domain.beta_h = 0.0 #Use first order in h-limiter |
---|
| 2568 | |
---|
| 2569 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
| 2570 | def x_slope(x, y): |
---|
| 2571 | return -x/3 |
---|
| 2572 | |
---|
| 2573 | domain.set_quantity('elevation', x_slope) |
---|
| 2574 | |
---|
| 2575 | # Boundary conditions |
---|
| 2576 | Br = Reflective_boundary(domain) |
---|
| 2577 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2578 | |
---|
| 2579 | #Initial condition |
---|
| 2580 | domain.set_quantity('stage', Constant_height(x_slope, 0.05)) |
---|
| 2581 | domain.check_integrity() |
---|
| 2582 | |
---|
| 2583 | assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 2584 | [0.01296296, 0.03148148, 0.01296296, |
---|
| 2585 | 0.03148148, 0.01296296, 0.03148148, |
---|
| 2586 | 0.01296296, 0.03148148, 0.01296296, |
---|
| 2587 | 0.03148148, 0.01296296, 0.03148148, |
---|
| 2588 | -0.04259259, -0.02407407, -0.04259259, |
---|
| 2589 | -0.02407407, -0.04259259, -0.02407407, |
---|
| 2590 | -0.04259259, -0.02407407, -0.04259259, |
---|
| 2591 | -0.02407407, -0.04259259, -0.02407407, |
---|
| 2592 | -0.09814815, -0.07962963, -0.09814815, |
---|
| 2593 | -0.07962963, -0.09814815, -0.07962963, |
---|
| 2594 | -0.09814815, -0.07962963, -0.09814815, |
---|
| 2595 | -0.07962963, -0.09814815, -0.07962963, |
---|
| 2596 | -0.1537037 , -0.13518519, -0.1537037, |
---|
| 2597 | -0.13518519, -0.1537037, -0.13518519, |
---|
| 2598 | -0.1537037 , -0.13518519, -0.1537037, |
---|
| 2599 | -0.13518519, -0.1537037, -0.13518519, |
---|
| 2600 | -0.20925926, -0.19074074, -0.20925926, |
---|
| 2601 | -0.19074074, -0.20925926, -0.19074074, |
---|
| 2602 | -0.20925926, -0.19074074, -0.20925926, |
---|
| 2603 | -0.19074074, -0.20925926, -0.19074074, |
---|
| 2604 | -0.26481481, -0.2462963, -0.26481481, |
---|
| 2605 | -0.2462963, -0.26481481, -0.2462963, |
---|
| 2606 | -0.26481481, -0.2462963, -0.26481481, |
---|
| 2607 | -0.2462963, -0.26481481, -0.2462963]) |
---|
| 2608 | |
---|
| 2609 | |
---|
| 2610 | #print domain.quantities['stage'].extrapolate_second_order() |
---|
| 2611 | #domain.distribute_to_vertices_and_edges() |
---|
| 2612 | #print domain.quantities['stage'].vertex_values[:,0] |
---|
| 2613 | |
---|
| 2614 | #Evolution |
---|
| 2615 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.1): |
---|
| 2616 | pass |
---|
| 2617 | |
---|
| 2618 | |
---|
[3560] | 2619 | #Data from earlier version of abstract_2d_finite_volumes ft=0.1 |
---|
[2526] | 2620 | assert allclose(domain.min_timestep, 0.0376895634803) |
---|
| 2621 | assert allclose(domain.max_timestep, 0.0415635655309) |
---|
| 2622 | |
---|
| 2623 | |
---|
| 2624 | assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 2625 | [0.00855788, 0.01575204, 0.00994606, 0.01717072, |
---|
| 2626 | 0.01005985, 0.01716362, 0.01005985, 0.01716299, |
---|
| 2627 | 0.01007098, 0.01736248, 0.01216452, 0.02026776, |
---|
| 2628 | -0.04462374, -0.02479045, -0.04199789, -0.0229465, |
---|
| 2629 | -0.04184033, -0.02295693, -0.04184013, -0.02295675, |
---|
| 2630 | -0.04184486, -0.0228168, -0.04028876, -0.02036486, |
---|
| 2631 | -0.10029444, -0.08170809, -0.09772846, -0.08021704, |
---|
| 2632 | -0.09760006, -0.08022143, -0.09759984, -0.08022124, |
---|
| 2633 | -0.09760261, -0.08008893, -0.09603914, -0.07758209, |
---|
| 2634 | -0.15584152, -0.13723138, -0.15327266, -0.13572906, |
---|
| 2635 | -0.15314427, -0.13573349, -0.15314405, -0.13573331, |
---|
| 2636 | -0.15314679, -0.13560104, -0.15158523, -0.13310701, |
---|
| 2637 | -0.21208605, -0.19283913, -0.20955631, -0.19134189, |
---|
| 2638 | -0.20942821, -0.19134598, -0.20942799, -0.1913458, |
---|
| 2639 | -0.20943005, -0.19120952, -0.20781177, -0.18869401, |
---|
| 2640 | -0.25384082, -0.2463294, -0.25047649, -0.24464654, |
---|
| 2641 | -0.25031159, -0.24464253, -0.25031112, -0.24464253, |
---|
| 2642 | -0.25031463, -0.24454764, -0.24885323, -0.24286438]) |
---|
| 2643 | |
---|
| 2644 | |
---|
| 2645 | os.remove(domain.filename + '.sww') |
---|
| 2646 | |
---|
| 2647 | def test_bedslope_problem_second_order_two_yieldsteps(self): |
---|
| 2648 | |
---|
| 2649 | from mesh_factory import rectangular |
---|
| 2650 | from Numeric import array |
---|
| 2651 | |
---|
| 2652 | #Create basic mesh |
---|
| 2653 | points, vertices, boundary = rectangular(6, 6) |
---|
| 2654 | |
---|
| 2655 | #Create shallow water domain |
---|
| 2656 | domain = Domain(points, vertices, boundary) |
---|
| 2657 | domain.smooth = False |
---|
| 2658 | domain.default_order=2 |
---|
| 2659 | domain.beta_h = 0.0 #Use first order in h-limiter |
---|
| 2660 | |
---|
| 2661 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
| 2662 | def x_slope(x, y): |
---|
| 2663 | return -x/3 |
---|
| 2664 | |
---|
| 2665 | domain.set_quantity('elevation', x_slope) |
---|
| 2666 | |
---|
| 2667 | # Boundary conditions |
---|
| 2668 | Br = Reflective_boundary(domain) |
---|
| 2669 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2670 | |
---|
| 2671 | #Initial condition |
---|
| 2672 | domain.set_quantity('stage', Constant_height(x_slope, 0.05)) |
---|
| 2673 | domain.check_integrity() |
---|
| 2674 | |
---|
| 2675 | assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 2676 | [0.01296296, 0.03148148, 0.01296296, |
---|
| 2677 | 0.03148148, 0.01296296, 0.03148148, |
---|
| 2678 | 0.01296296, 0.03148148, 0.01296296, |
---|
| 2679 | 0.03148148, 0.01296296, 0.03148148, |
---|
| 2680 | -0.04259259, -0.02407407, -0.04259259, |
---|
| 2681 | -0.02407407, -0.04259259, -0.02407407, |
---|
| 2682 | -0.04259259, -0.02407407, -0.04259259, |
---|
| 2683 | -0.02407407, -0.04259259, -0.02407407, |
---|
| 2684 | -0.09814815, -0.07962963, -0.09814815, |
---|
| 2685 | -0.07962963, -0.09814815, -0.07962963, |
---|
| 2686 | -0.09814815, -0.07962963, -0.09814815, |
---|
| 2687 | -0.07962963, -0.09814815, -0.07962963, |
---|
| 2688 | -0.1537037 , -0.13518519, -0.1537037, |
---|
| 2689 | -0.13518519, -0.1537037, -0.13518519, |
---|
| 2690 | -0.1537037 , -0.13518519, -0.1537037, |
---|
| 2691 | -0.13518519, -0.1537037, -0.13518519, |
---|
| 2692 | -0.20925926, -0.19074074, -0.20925926, |
---|
| 2693 | -0.19074074, -0.20925926, -0.19074074, |
---|
| 2694 | -0.20925926, -0.19074074, -0.20925926, |
---|
| 2695 | -0.19074074, -0.20925926, -0.19074074, |
---|
| 2696 | -0.26481481, -0.2462963, -0.26481481, |
---|
| 2697 | -0.2462963, -0.26481481, -0.2462963, |
---|
| 2698 | -0.26481481, -0.2462963, -0.26481481, |
---|
| 2699 | -0.2462963, -0.26481481, -0.2462963]) |
---|
| 2700 | |
---|
| 2701 | |
---|
| 2702 | #print domain.quantities['stage'].extrapolate_second_order() |
---|
| 2703 | #domain.distribute_to_vertices_and_edges() |
---|
| 2704 | #print domain.quantities['stage'].vertex_values[:,0] |
---|
| 2705 | |
---|
| 2706 | #Evolution |
---|
| 2707 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.1): #0.05?? |
---|
| 2708 | #domain.write_time() |
---|
| 2709 | pass |
---|
| 2710 | |
---|
| 2711 | |
---|
| 2712 | |
---|
| 2713 | assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 2714 | [0.00855788, 0.01575204, 0.00994606, 0.01717072, 0.01005985, |
---|
| 2715 | 0.01716362, 0.01005985, 0.01716299, 0.01007098, 0.01736248, |
---|
| 2716 | 0.01216452, 0.02026776, -0.04462374, -0.02479045, -0.04199789, |
---|
| 2717 | -0.0229465, -0.04184033, -0.02295693, -0.04184013, |
---|
| 2718 | -0.02295675, -0.04184486, -0.0228168, -0.04028876, |
---|
| 2719 | -0.02036486, -0.10029444, -0.08170809, -0.09772846, |
---|
| 2720 | -0.08021704, -0.09760006, -0.08022143, -0.09759984, |
---|
| 2721 | -0.08022124, -0.09760261, -0.08008893, -0.09603914, |
---|
| 2722 | -0.07758209, -0.15584152, -0.13723138, -0.15327266, |
---|
| 2723 | -0.13572906, -0.15314427, -0.13573349, -0.15314405, |
---|
| 2724 | -0.13573331, -0.15314679, -0.13560104, -0.15158523, |
---|
| 2725 | -0.13310701, -0.21208605, -0.19283913, -0.20955631, |
---|
| 2726 | -0.19134189, -0.20942821, -0.19134598, -0.20942799, |
---|
| 2727 | -0.1913458, -0.20943005, -0.19120952, -0.20781177, |
---|
| 2728 | -0.18869401, -0.25384082, -0.2463294, -0.25047649, |
---|
| 2729 | -0.24464654, -0.25031159, -0.24464253, -0.25031112, |
---|
| 2730 | -0.24464253, -0.25031463, -0.24454764, -0.24885323, |
---|
| 2731 | -0.24286438]) |
---|
| 2732 | |
---|
| 2733 | os.remove(domain.filename + '.sww') |
---|
| 2734 | |
---|
| 2735 | def test_bedslope_problem_second_order_more_steps(self): |
---|
| 2736 | |
---|
| 2737 | from mesh_factory import rectangular |
---|
| 2738 | from Numeric import array |
---|
| 2739 | |
---|
| 2740 | #Create basic mesh |
---|
| 2741 | points, vertices, boundary = rectangular(6, 6) |
---|
| 2742 | |
---|
| 2743 | #Create shallow water domain |
---|
| 2744 | domain = Domain(points, vertices, boundary) |
---|
| 2745 | domain.smooth = False |
---|
| 2746 | domain.default_order=2 |
---|
| 2747 | domain.beta_h = 0.0 #Use first order in h-limiter |
---|
| 2748 | |
---|
| 2749 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
| 2750 | def x_slope(x, y): |
---|
| 2751 | return -x/3 |
---|
| 2752 | |
---|
| 2753 | domain.set_quantity('elevation', x_slope) |
---|
| 2754 | |
---|
| 2755 | # Boundary conditions |
---|
| 2756 | Br = Reflective_boundary(domain) |
---|
| 2757 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2758 | |
---|
| 2759 | #Initial condition |
---|
| 2760 | domain.set_quantity('stage', Constant_height(x_slope, 0.05)) |
---|
| 2761 | domain.check_integrity() |
---|
| 2762 | |
---|
| 2763 | assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 2764 | [0.01296296, 0.03148148, 0.01296296, |
---|
| 2765 | 0.03148148, 0.01296296, 0.03148148, |
---|
| 2766 | 0.01296296, 0.03148148, 0.01296296, |
---|
| 2767 | 0.03148148, 0.01296296, 0.03148148, |
---|
| 2768 | -0.04259259, -0.02407407, -0.04259259, |
---|
| 2769 | -0.02407407, -0.04259259, -0.02407407, |
---|
| 2770 | -0.04259259, -0.02407407, -0.04259259, |
---|
| 2771 | -0.02407407, -0.04259259, -0.02407407, |
---|
| 2772 | -0.09814815, -0.07962963, -0.09814815, |
---|
| 2773 | -0.07962963, -0.09814815, -0.07962963, |
---|
| 2774 | -0.09814815, -0.07962963, -0.09814815, |
---|
| 2775 | -0.07962963, -0.09814815, -0.07962963, |
---|
| 2776 | -0.1537037 , -0.13518519, -0.1537037, |
---|
| 2777 | -0.13518519, -0.1537037, -0.13518519, |
---|
| 2778 | -0.1537037 , -0.13518519, -0.1537037, |
---|
| 2779 | -0.13518519, -0.1537037, -0.13518519, |
---|
| 2780 | -0.20925926, -0.19074074, -0.20925926, |
---|
| 2781 | -0.19074074, -0.20925926, -0.19074074, |
---|
| 2782 | -0.20925926, -0.19074074, -0.20925926, |
---|
| 2783 | -0.19074074, -0.20925926, -0.19074074, |
---|
| 2784 | -0.26481481, -0.2462963, -0.26481481, |
---|
| 2785 | -0.2462963, -0.26481481, -0.2462963, |
---|
| 2786 | -0.26481481, -0.2462963, -0.26481481, |
---|
| 2787 | -0.2462963, -0.26481481, -0.2462963]) |
---|
| 2788 | |
---|
| 2789 | |
---|
| 2790 | #print domain.quantities['stage'].extrapolate_second_order() |
---|
| 2791 | #domain.distribute_to_vertices_and_edges() |
---|
| 2792 | #print domain.quantities['stage'].vertex_values[:,0] |
---|
| 2793 | |
---|
| 2794 | #Evolution |
---|
| 2795 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.5): |
---|
| 2796 | pass |
---|
| 2797 | |
---|
| 2798 | |
---|
| 2799 | assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 2800 | [-0.02907028, -0.01475478, -0.02973417, -0.01447186, -0.02932665, -0.01428285, |
---|
| 2801 | -0.02901975, -0.0141361, -0.02898816, -0.01418135, -0.02961409, -0.01403487, |
---|
| 2802 | -0.07597998, -0.06252591, -0.07664854, -0.06312532, -0.07638287, -0.06265139, |
---|
| 2803 | -0.07571145, -0.06235231, -0.0756817, -0.06245309, -0.07652292, -0.06289946, |
---|
| 2804 | -0.12367464, -0.11088981, -0.12237277, -0.11115338, -0.1218934, -0.1107174, |
---|
| 2805 | -0.12081485, -0.11000491, -0.12038451, -0.11010335, -0.12102113, -0.11012105, |
---|
| 2806 | -0.16909116, -0.15831543, -0.16730214, -0.15786249, -0.1665493, -0.15697919, |
---|
| 2807 | -0.16496618, -0.15559852, -0.16338679, -0.15509088, -0.16364092, -0.15424423, |
---|
| 2808 | -0.18771107, -0.19903904, -0.18903759, -0.19858437, -0.18701552, -0.19697797, |
---|
| 2809 | -0.1833593, -0.19505871, -0.1818806, -0.19418042, -0.18586159, -0.19576946, |
---|
| 2810 | -0.13986873, -0.14170053, -0.14132188, -0.14560674, -0.14095617, -0.14373292, |
---|
| 2811 | -0.13785933, -0.14033364, -0.13592955, -0.13936356, -0.13596008, -0.14216296]) |
---|
| 2812 | |
---|
| 2813 | assert allclose(domain.quantities['xmomentum'].centroid_values, |
---|
| 2814 | [ 0.00831121, 0.00317948, 0.00731797, 0.00334939, 0.00764717, 0.00348053, |
---|
| 2815 | 0.00788729, 0.00356522, 0.00780649, 0.00341919, 0.00693525, 0.00310375, |
---|
| 2816 | 0.02166196, 0.01421475, 0.02017737, 0.01316839, 0.02037015, 0.01368659, |
---|
| 2817 | 0.02106, 0.01399161, 0.02074514, 0.01354935, 0.01887407, 0.0123113, |
---|
| 2818 | 0.03775083, 0.02855197, 0.03689337, 0.02759782, 0.03732848, 0.02812072, |
---|
| 2819 | 0.03872545, 0.02913348, 0.03880939, 0.02803804, 0.03546499, 0.0260039, |
---|
| 2820 | 0.0632131, 0.04730634, 0.0576324, 0.04592336, 0.05790921, 0.04690514, |
---|
| 2821 | 0.05986467, 0.04871165, 0.06170068, 0.04811572, 0.05657041, 0.04416292, |
---|
| 2822 | 0.08489642, 0.07188097, 0.07835261, 0.06843406, 0.07986412, 0.0698247, |
---|
| 2823 | 0.08201071, 0.07216756, 0.08378418, 0.07273624, 0.080399, 0.06645841, |
---|
| 2824 | 0.01631548, 0.04691608, 0.0206632, 0.044409, 0.02115518, 0.04560305, |
---|
| 2825 | 0.02160608, 0.04663725, 0.02174734, 0.04795559, 0.02281427, 0.05667111]) |
---|
| 2826 | |
---|
| 2827 | |
---|
| 2828 | assert allclose(domain.quantities['ymomentum'].centroid_values, |
---|
| 2829 | [ 1.45876601e-004, -3.24627393e-004, -1.57572719e-004, -2.92790187e-004, |
---|
| 2830 | -9.90988382e-005, -3.06677335e-004, -1.62493106e-004, -3.71310004e-004, |
---|
| 2831 | -1.99445058e-004, -3.28493467e-004, 6.68217349e-005, -8.42042805e-006, |
---|
| 2832 | 5.05093371e-004, -1.42842214e-004, -6.81454718e-005, -5.02084057e-004, |
---|
| 2833 | -8.50583861e-005, -4.65443981e-004, -1.96406564e-004, -5.88889562e-004, |
---|
| 2834 | -2.70160173e-004, -5.35485454e-004, 2.60780997e-004, 3.12145471e-005, |
---|
| 2835 | 5.16189608e-004, 1.07069062e-004, 9.29989252e-005, -3.71211119e-004, |
---|
| 2836 | 1.16350246e-004, -3.82407830e-004, -1.62077969e-004, -6.30906636e-004, |
---|
| 2837 | -4.74025708e-004, -6.94463009e-004, 6.15092843e-005, 2.22106820e-004, |
---|
| 2838 | -6.29589294e-004, 2.43611937e-004, -5.88125094e-004, -6.94293192e-005, |
---|
| 2839 | -4.17914641e-004, 6.64609019e-005, -7.68334577e-004, -3.40232101e-004, |
---|
| 2840 | -1.67424308e-003, -7.39485066e-004, -1.59966988e-003, 5.68262838e-005, |
---|
| 2841 | -1.48470633e-003, -1.84554882e-003, -2.27200099e-003, -1.67506848e-003, |
---|
| 2842 | -1.95610258e-003, -1.47638801e-003, -1.73779477e-003, -1.85498791e-003, |
---|
| 2843 | -2.01357843e-003, -2.17675471e-003, -1.65783870e-003, -1.15818681e-003, |
---|
| 2844 | -1.18663036e-003, -2.94229849e-003, -3.59309018e-003, -5.13496584e-003, |
---|
| 2845 | -6.17359400e-003, -5.98761937e-003, -6.00540116e-003, -5.01121966e-003, |
---|
| 2846 | -4.50964850e-003, -3.06319963e-003, 6.08950810e-004, -4.79537921e-004]) |
---|
| 2847 | |
---|
| 2848 | os.remove(domain.filename + '.sww') |
---|
| 2849 | |
---|
| 2850 | |
---|
| 2851 | def test_temp_play(self): |
---|
| 2852 | |
---|
| 2853 | from mesh_factory import rectangular |
---|
| 2854 | from Numeric import array |
---|
| 2855 | |
---|
| 2856 | #Create basic mesh |
---|
| 2857 | points, vertices, boundary = rectangular(5, 5) |
---|
| 2858 | |
---|
| 2859 | #Create shallow water domain |
---|
| 2860 | domain = Domain(points, vertices, boundary) |
---|
| 2861 | domain.smooth = False |
---|
| 2862 | domain.default_order=2 |
---|
| 2863 | domain.beta_h = 0.0 #Use first order in h-limiter |
---|
| 2864 | |
---|
| 2865 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
| 2866 | def x_slope(x, y): |
---|
| 2867 | return -x/3 |
---|
| 2868 | |
---|
| 2869 | domain.set_quantity('elevation', x_slope) |
---|
| 2870 | |
---|
| 2871 | # Boundary conditions |
---|
| 2872 | Br = Reflective_boundary(domain) |
---|
| 2873 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
| 2874 | |
---|
| 2875 | #Initial condition |
---|
| 2876 | domain.set_quantity('stage', Constant_height(x_slope, 0.05)) |
---|
| 2877 | domain.check_integrity() |
---|
| 2878 | |
---|
| 2879 | #Evolution |
---|
| 2880 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.1): |
---|
| 2881 | pass |
---|
| 2882 | |
---|
| 2883 | assert allclose(domain.quantities['stage'].centroid_values[:4], |
---|
| 2884 | [0.00206836, 0.01296714, 0.00363415, 0.01438924]) |
---|
| 2885 | assert allclose(domain.quantities['xmomentum'].centroid_values[:4], |
---|
| 2886 | [0.01360154, 0.00671133, 0.01264578, 0.00648503]) |
---|
| 2887 | assert allclose(domain.quantities['ymomentum'].centroid_values[:4], |
---|
| 2888 | [-1.19201077e-003, -7.23647546e-004, |
---|
| 2889 | -6.39083123e-005, 6.29815168e-005]) |
---|
| 2890 | |
---|
| 2891 | os.remove(domain.filename + '.sww') |
---|
| 2892 | |
---|
| 2893 | def test_complex_bed(self): |
---|
| 2894 | #No friction is tested here |
---|
| 2895 | |
---|
| 2896 | from mesh_factory import rectangular |
---|
| 2897 | from Numeric import array |
---|
| 2898 | |
---|
| 2899 | N = 12 |
---|
| 2900 | points, vertices, boundary = rectangular(N, N/2, len1=1.2,len2=0.6, |
---|
| 2901 | origin=(-0.07, 0)) |
---|
| 2902 | |
---|
| 2903 | |
---|
| 2904 | domain = Domain(points, vertices, boundary) |
---|
| 2905 | domain.smooth = False |
---|
| 2906 | domain.visualise = False |
---|
| 2907 | domain.default_order=2 |
---|
| 2908 | |
---|
| 2909 | |
---|
| 2910 | inflow_stage = 0.1 |
---|
| 2911 | Z = Weir(inflow_stage) |
---|
| 2912 | domain.set_quantity('elevation', Z) |
---|
| 2913 | |
---|
| 2914 | Br = Reflective_boundary(domain) |
---|
| 2915 | Bd = Dirichlet_boundary([inflow_stage, 0.0, 0.0]) |
---|
| 2916 | domain.set_boundary({'left': Bd, 'right': Br, 'bottom': Br, 'top': Br}) |
---|
| 2917 | |
---|
| 2918 | domain.set_quantity('stage', Constant_height(Z, 0.)) |
---|
| 2919 | |
---|
| 2920 | for t in domain.evolve(yieldstep = 0.02, finaltime = 0.2): |
---|
| 2921 | pass |
---|
| 2922 | |
---|
| 2923 | |
---|
| 2924 | #print domain.quantities['stage'].centroid_values |
---|
| 2925 | |
---|
| 2926 | #FIXME: These numbers were from version before 25/10 |
---|
| 2927 | #assert allclose(domain.quantities['stage'].centroid_values, |
---|
| 2928 | # [3.95822638e-002, 5.61022588e-002, 4.66437868e-002, 5.73081011e-002, |
---|
| 2929 | # 4.72394613e-002, 5.74684939e-002, 4.74309483e-002, 5.77458084e-002, |
---|
| 2930 | # 4.80628177e-002, 5.85656225e-002, 4.90498542e-002, 6.02609831e-002, |
---|
| 2931 | # 1.18470315e-002, 1.75136443e-002, 1.18035266e-002, 2.15565695e-002, |
---|
| 2932 | # 1.31620268e-002, 2.14351640e-002, 1.32351076e-002, 2.15450687e-002, |
---|
| 2933 | # 1.36414028e-002, 2.24274619e-002, 1.51689511e-002, 2.21789655e-002, |
---|
| 2934 | # -7.54337535e-003, -6.86362021e-004, -7.74146760e-003, -1.83756530e-003, |
---|
| 2935 | # -8.16773628e-003, -4.49916813e-004, -8.08202599e-003, -3.91118720e-004, |
---|
| 2936 | # -8.10292716e-003, -3.88584984e-004, -7.35226124e-003, 2.73985295e-004, |
---|
| 2937 | # 1.86166683e-001, 8.74070369e-002, 1.86166712e-001, 8.74035875e-002, |
---|
| 2938 | # 6.11666935e-002, -3.76173225e-002, -6.38333276e-002, -3.76147365e-002, |
---|
| 2939 | # 6.11666725e-002, 8.73846774e-002, 1.86166697e-001, 8.74171550e-002, |
---|
| 2940 | # -4.83333333e-002, 1.18333333e-001, -4.83333333e-002, 1.18333333e-001, |
---|
| 2941 | # -4.83333333e-002, -6.66666667e-003, -1.73333333e-001, -1.31666667e-001, |
---|
| 2942 | # -1.73333333e-001, -6.66666667e-003, -4.83333333e-002, 1.18333333e-001, |
---|
| 2943 | # -2.48333333e-001, -2.31666667e-001, -2.48333333e-001, -2.31666667e-001, |
---|
| 2944 | # -2.48333333e-001, -2.31666667e-001, -2.48333333e-001, -2.31666667e-001, |
---|
| 2945 | # -2.48333333e-001, -2.31666667e-001, -2.48333333e-001, -2.31666667e-001, |
---|
| 2946 | # -4.65000000e-001, -3.65000000e-001, -4.65000000e-001, -3.65000000e-001, |
---|
| 2947 | # -4.65000000e-001, -3.65000000e-001, -4.65000000e-001, -3.65000000e-001, |
---|
| 2948 | # -4.65000000e-001, -3.65000000e-001, -4.65000000e-001, -3.65000000e-001, |
---|
| 2949 | # -5.98333333e-001, -5.81666667e-001, -5.98333333e-001, -5.81666667e-001, |
---|
| 2950 | # -5.98333333e-001, -5.81666667e-001, -5.98333333e-001, -5.81666667e-001, |
---|
| 2951 | # -5.98333333e-001, -5.81666667e-001, -5.98333333e-001, -5.81666667e-001, |
---|
| 2952 | # -6.48333333e-001, -6.31666667e-001, -6.48333333e-001, -6.31666667e-001, |
---|
| 2953 | # -6.48333333e-001, -6.31666667e-001, -6.48333333e-001, -6.31666667e-001, |
---|
| 2954 | # -6.48333333e-001, -6.31666667e-001, -6.48333333e-001, -6.31666667e-001, |
---|
| 2955 | # -5.31666667e-001, -5.98333333e-001, -5.31666667e-001, -5.98333333e-001, |
---|
| 2956 | # -5.31666667e-001, -5.98333333e-001, -5.31666667e-001, -5.98333333e-001, |
---|
| 2957 | # -5.31666667e-001, -5.98333333e-001, -5.31666667e-001, -5.98333333e-001, |
---|
| 2958 | # -4.98333333e-001, -4.81666667e-001, -4.98333333e-001, -4.81666667e-001, |
---|
| 2959 | # -4.98333333e-001, -4.81666667e-001, -4.98333333e-001, -4.81666667e-001, |
---|
| 2960 | # -4.98333333e-001, -4.81666667e-001, -4.98333333e-001, -4.81666667e-001, |
---|
| 2961 | # -5.48333333e-001, -5.31666667e-001, -5.48333333e-001, -5.31666667e-001, |
---|
| 2962 | # -5.48333333e-001, -5.31666667e-001, -5.48333333e-001, -5.31666667e-001, |
---|
| 2963 | # -5.48333333e-001, -5.31666667e-001, -5.48333333e-001, -5.31666667e-001]) |
---|
| 2964 | |
---|
| 2965 | os.remove(domain.filename + '.sww') |
---|
| 2966 | |
---|
| 2967 | def test_spatio_temporal_boundary_1(self): |
---|
| 2968 | """Test that boundary values can be read from file and interpolated |
---|
| 2969 | in both time and space. |
---|
| 2970 | |
---|
| 2971 | Verify that the same steady state solution is arrived at and that |
---|
| 2972 | time interpolation works. |
---|
| 2973 | |
---|
| 2974 | The full solution history is not exactly the same as |
---|
| 2975 | file boundary must read and interpolate from *smoothed* version |
---|
| 2976 | as stored in sww. |
---|
| 2977 | """ |
---|
| 2978 | import time |
---|
| 2979 | |
---|
| 2980 | #Create sww file of simple propagation from left to right |
---|
| 2981 | #through rectangular domain |
---|
| 2982 | |
---|
| 2983 | from mesh_factory import rectangular |
---|
| 2984 | |
---|
| 2985 | #Create basic mesh |
---|
| 2986 | points, vertices, boundary = rectangular(3, 3) |
---|
| 2987 | |
---|
| 2988 | #Create shallow water domain |
---|
| 2989 | domain1 = Domain(points, vertices, boundary) |
---|
| 2990 | |
---|
| 2991 | domain1.reduction = mean |
---|
| 2992 | domain1.smooth = False #Exact result |
---|
| 2993 | |
---|
| 2994 | domain1.default_order = 2 |
---|
| 2995 | domain1.store = True |
---|
| 2996 | domain1.set_datadir('.') |
---|
| 2997 | domain1.set_name('spatio_temporal_boundary_source' + str(time.time())) |
---|
| 2998 | |
---|
| 2999 | #FIXME: This is extremely important! |
---|
| 3000 | #How can we test if they weren't stored? |
---|
| 3001 | domain1.quantities_to_be_stored = ['stage', 'xmomentum', 'ymomentum'] |
---|
| 3002 | |
---|
| 3003 | |
---|
| 3004 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
| 3005 | domain1.set_quantity('elevation', 0) |
---|
| 3006 | domain1.set_quantity('friction', 0) |
---|
| 3007 | |
---|
| 3008 | # Boundary conditions |
---|
| 3009 | Br = Reflective_boundary(domain1) |
---|
| 3010 | Bd = Dirichlet_boundary([0.3,0,0]) |
---|
| 3011 | domain1.set_boundary({'left': Bd, 'top': Bd, 'right': Br, 'bottom': Br}) |
---|
| 3012 | #Initial condition |
---|
| 3013 | domain1.set_quantity('stage', 0) |
---|
| 3014 | domain1.check_integrity() |
---|
| 3015 | |
---|
| 3016 | finaltime = 5 |
---|
| 3017 | #Evolution (full domain - large steps) |
---|
| 3018 | for t in domain1.evolve(yieldstep = 0.671, finaltime = finaltime): |
---|
| 3019 | pass |
---|
| 3020 | #domain1.write_time() |
---|
| 3021 | |
---|
| 3022 | cv1 = domain1.quantities['stage'].centroid_values |
---|
| 3023 | |
---|
| 3024 | |
---|
[2709] | 3025 | #Create a triangle shaped domain (reusing coordinates from domain 1), |
---|
[2526] | 3026 | #formed from the lower and right hand boundaries and |
---|
| 3027 | #the sw-ne diagonal |
---|
| 3028 | #from domain 1. Call it domain2 |
---|
| 3029 | |
---|
| 3030 | points = [ [0,0], [1.0/3,0], [1.0/3,1.0/3], |
---|
| 3031 | [2.0/3,0], [2.0/3,1.0/3], [2.0/3,2.0/3], |
---|
| 3032 | [1,0], [1,1.0/3], [1,2.0/3], [1,1]] |
---|
| 3033 | |
---|
| 3034 | vertices = [ [1,2,0], [3,4,1], [2,1,4], [4,5,2], |
---|
| 3035 | [6,7,3], [4,3,7], [7,8,4], [5,4,8], [8,9,5]] |
---|
| 3036 | |
---|
| 3037 | boundary = { (0,1):'bottom', (1,1):'bottom', (4,1): 'bottom', |
---|
| 3038 | (4,2):'right', (6,2):'right', (8,2):'right', |
---|
| 3039 | (0,0):'diagonal', (3,0):'diagonal', (8,0):'diagonal'} |
---|
| 3040 | |
---|
| 3041 | domain2 = Domain(points, vertices, boundary) |
---|
| 3042 | |
---|
| 3043 | domain2.reduction = domain1.reduction |
---|
| 3044 | domain2.smooth = False |
---|
| 3045 | domain2.default_order = 2 |
---|
| 3046 | |
---|
| 3047 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
| 3048 | domain2.set_quantity('elevation', 0) |
---|
| 3049 | domain2.set_quantity('friction', 0) |
---|
| 3050 | domain2.set_quantity('stage', 0) |
---|
| 3051 | |
---|
| 3052 | # Boundary conditions |
---|
| 3053 | Br = Reflective_boundary(domain2) |
---|
| 3054 | Bf = Spatio_temporal_boundary(domain1.filename + '.' + domain1.format, |
---|
| 3055 | domain2) |
---|
| 3056 | domain2.set_boundary({'right':Br, 'bottom':Br, 'diagonal':Bf}) |
---|
| 3057 | domain2.check_integrity() |
---|
| 3058 | |
---|
| 3059 | |
---|
| 3060 | |
---|
| 3061 | #Evolution (small steps) |
---|
| 3062 | for t in domain2.evolve(yieldstep = 0.0711, finaltime = finaltime): |
---|
| 3063 | pass |
---|
| 3064 | |
---|
| 3065 | |
---|
| 3066 | #Use output from domain1 as spatio-temporal boundary for domain2 |
---|
| 3067 | #and verify that results at right hand side are close. |
---|
| 3068 | |
---|
| 3069 | cv2 = domain2.quantities['stage'].centroid_values |
---|
| 3070 | |
---|
| 3071 | #print take(cv1, (12,14,16)) #Right |
---|
| 3072 | #print take(cv2, (4,6,8)) |
---|
| 3073 | #print take(cv1, (0,6,12)) #Bottom |
---|
| 3074 | #print take(cv2, (0,1,4)) |
---|
| 3075 | #print take(cv1, (0,8,16)) #Diag |
---|
| 3076 | #print take(cv2, (0,3,8)) |
---|
| 3077 | |
---|
| 3078 | assert allclose( take(cv1, (0,8,16)), take(cv2, (0,3,8))) #Diag |
---|
| 3079 | assert allclose( take(cv1, (0,6,12)), take(cv2, (0,1,4))) #Bottom |
---|
| 3080 | assert allclose( take(cv1, (12,14,16)), take(cv2, (4,6,8))) #RHS |
---|
| 3081 | |
---|
| 3082 | #Cleanup |
---|
| 3083 | os.remove(domain1.filename + '.' + domain1.format) |
---|
| 3084 | os.remove(domain2.filename + '.' + domain2.format) |
---|
| 3085 | |
---|
| 3086 | |
---|
| 3087 | |
---|
| 3088 | def test_spatio_temporal_boundary_2(self): |
---|
| 3089 | """Test that boundary values can be read from file and interpolated |
---|
| 3090 | in both time and space. |
---|
| 3091 | This is a more basic test, verifying that boundary object |
---|
| 3092 | produces the expected results |
---|
| 3093 | |
---|
| 3094 | |
---|
| 3095 | """ |
---|
| 3096 | import time |
---|
| 3097 | |
---|
| 3098 | #Create sww file of simple propagation from left to right |
---|
| 3099 | #through rectangular domain |
---|
| 3100 | |
---|
| 3101 | from mesh_factory import rectangular |
---|
| 3102 | |
---|
| 3103 | #Create basic mesh |
---|
| 3104 | points, vertices, boundary = rectangular(3, 3) |
---|
| 3105 | |
---|
| 3106 | #Create shallow water domain |
---|
| 3107 | domain1 = Domain(points, vertices, boundary) |
---|
| 3108 | |
---|
| 3109 | domain1.reduction = mean |
---|
| 3110 | domain1.smooth = True #To mimic MOST output |
---|
| 3111 | |
---|
| 3112 | domain1.default_order = 2 |
---|
| 3113 | domain1.store = True |
---|
| 3114 | domain1.set_datadir('.') |
---|
| 3115 | domain1.set_name('spatio_temporal_boundary_source' + str(time.time())) |
---|
| 3116 | |
---|
| 3117 | #FIXME: This is extremely important! |
---|
| 3118 | #How can we test if they weren't stored? |
---|
| 3119 | domain1.quantities_to_be_stored = ['stage', 'xmomentum', 'ymomentum'] |
---|
| 3120 | |
---|
| 3121 | |
---|
| 3122 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
| 3123 | domain1.set_quantity('elevation', 0) |
---|
| 3124 | domain1.set_quantity('friction', 0) |
---|
| 3125 | |
---|
| 3126 | # Boundary conditions |
---|
| 3127 | Br = Reflective_boundary(domain1) |
---|
| 3128 | Bd = Dirichlet_boundary([0.3,0,0]) |
---|
| 3129 | domain1.set_boundary({'left': Bd, 'top': Bd, 'right': Br, 'bottom': Br}) |
---|
| 3130 | #Initial condition |
---|
| 3131 | domain1.set_quantity('stage', 0) |
---|
| 3132 | domain1.check_integrity() |
---|
| 3133 | |
---|
| 3134 | finaltime = 5 |
---|
| 3135 | #Evolution (full domain - large steps) |
---|
| 3136 | for t in domain1.evolve(yieldstep = 1, finaltime = finaltime): |
---|
| 3137 | pass |
---|
| 3138 | #domain1.write_time() |
---|
| 3139 | |
---|
| 3140 | |
---|
| 3141 | #Create an triangle shaped domain (coinciding with some |
---|
| 3142 | #coordinates from domain 1), |
---|
| 3143 | #formed from the lower and right hand boundaries and |
---|
| 3144 | #the sw-ne diagonal |
---|
| 3145 | #from domain 1. Call it domain2 |
---|
| 3146 | |
---|
| 3147 | points = [ [0,0], [1.0/3,0], [1.0/3,1.0/3], |
---|
| 3148 | [2.0/3,0], [2.0/3,1.0/3], [2.0/3,2.0/3], |
---|
| 3149 | [1,0], [1,1.0/3], [1,2.0/3], [1,1]] |
---|
| 3150 | |
---|
| 3151 | vertices = [ [1,2,0], |
---|
| 3152 | [3,4,1], [2,1,4], [4,5,2], |
---|
| 3153 | [6,7,3], [4,3,7], [7,8,4], [5,4,8], [8,9,5]] |
---|
| 3154 | |
---|
| 3155 | boundary = { (0,1):'bottom', (1,1):'bottom', (4,1): 'bottom', |
---|
| 3156 | (4,2):'right', (6,2):'right', (8,2):'right', |
---|
| 3157 | (0,0):'diagonal', (3,0):'diagonal', (8,0):'diagonal'} |
---|
| 3158 | |
---|
| 3159 | domain2 = Domain(points, vertices, boundary) |
---|
| 3160 | |
---|
| 3161 | domain2.reduction = domain1.reduction |
---|
| 3162 | domain2.smooth = False |
---|
| 3163 | domain2.default_order = 2 |
---|
| 3164 | |
---|
| 3165 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
| 3166 | domain2.set_quantity('elevation', 0) |
---|
| 3167 | domain2.set_quantity('friction', 0) |
---|
| 3168 | domain2.set_quantity('stage', 0) |
---|
| 3169 | |
---|
| 3170 | |
---|
| 3171 | #Read results for specific timesteps t=1 and t=2 |
---|
| 3172 | from Scientific.IO.NetCDF import NetCDFFile |
---|
| 3173 | fid = NetCDFFile(domain1.filename + '.' + domain1.format) |
---|
| 3174 | |
---|
| 3175 | x = fid.variables['x'][:] |
---|
| 3176 | y = fid.variables['y'][:] |
---|
| 3177 | s1 = fid.variables['stage'][1,:] |
---|
| 3178 | s2 = fid.variables['stage'][2,:] |
---|
| 3179 | fid.close() |
---|
| 3180 | |
---|
| 3181 | from Numeric import take, reshape, concatenate |
---|
| 3182 | shp = (len(x), 1) |
---|
| 3183 | points = concatenate( (reshape(x, shp), reshape(y, shp)), axis=1) |
---|
| 3184 | #The diagonal points of domain 1 are 0, 5, 10, 15 |
---|
| 3185 | |
---|
| 3186 | #print points[0], points[5], points[10], points[15] |
---|
| 3187 | assert allclose( take(points, [0,5,10,15]), |
---|
| 3188 | [[0,0], [1.0/3, 1.0/3], [2.0/3, 2.0/3], [1,1]]) |
---|
| 3189 | |
---|
| 3190 | |
---|
| 3191 | # Boundary conditions |
---|
| 3192 | Br = Reflective_boundary(domain2) |
---|
| 3193 | Bf = Spatio_temporal_boundary(domain1.filename + '.' + domain1.format, |
---|
| 3194 | domain2) |
---|
| 3195 | domain2.set_boundary({'right':Br, 'bottom':Br, 'diagonal':Bf}) |
---|
| 3196 | domain2.check_integrity() |
---|
| 3197 | |
---|
| 3198 | #Test that interpolation points are the mid points of the all boundary |
---|
| 3199 | #segments |
---|
| 3200 | |
---|
| 3201 | boundary_midpoints = [[1.0/6, 0], [1.0/2, 0], [5.0/6,0], |
---|
| 3202 | [1.0, 1.0/6], [1.0, 1.0/2], [1.0, 5.0/6], |
---|
| 3203 | [1.0/6, 1.0/6], [0.5, 0.5], [5.0/6, 5.0/6]] |
---|
| 3204 | |
---|
| 3205 | boundary_midpoints.sort() |
---|
| 3206 | R = Bf.F.interpolation_points.tolist() |
---|
| 3207 | R.sort() |
---|
| 3208 | assert allclose(boundary_midpoints, R) |
---|
| 3209 | |
---|
| 3210 | #Check spatially interpolated output at time == 1 |
---|
| 3211 | domain2.time = 1 |
---|
| 3212 | |
---|
| 3213 | #First diagonal midpoint |
---|
| 3214 | R0 = Bf.evaluate(0,0) |
---|
| 3215 | assert allclose(R0[0], (s1[0] + s1[5])/2) |
---|
| 3216 | |
---|
| 3217 | #Second diagonal midpoint |
---|
| 3218 | R0 = Bf.evaluate(3,0) |
---|
| 3219 | assert allclose(R0[0], (s1[5] + s1[10])/2) |
---|
| 3220 | |
---|
| 3221 | #First diagonal midpoint |
---|
| 3222 | R0 = Bf.evaluate(8,0) |
---|
| 3223 | assert allclose(R0[0], (s1[10] + s1[15])/2) |
---|
| 3224 | |
---|
| 3225 | #Check spatially interpolated output at time == 2 |
---|
| 3226 | domain2.time = 2 |
---|
| 3227 | |
---|
| 3228 | #First diagonal midpoint |
---|
| 3229 | R0 = Bf.evaluate(0,0) |
---|
| 3230 | assert allclose(R0[0], (s2[0] + s2[5])/2) |
---|
| 3231 | |
---|
| 3232 | #Second diagonal midpoint |
---|
| 3233 | R0 = Bf.evaluate(3,0) |
---|
| 3234 | assert allclose(R0[0], (s2[5] + s2[10])/2) |
---|
| 3235 | |
---|
| 3236 | #First diagonal midpoint |
---|
| 3237 | R0 = Bf.evaluate(8,0) |
---|
| 3238 | assert allclose(R0[0], (s2[10] + s2[15])/2) |
---|
| 3239 | |
---|
| 3240 | |
---|
| 3241 | #Now check temporal interpolation |
---|
| 3242 | |
---|
| 3243 | domain2.time = 1 + 2.0/3 |
---|
| 3244 | |
---|
| 3245 | #First diagonal midpoint |
---|
| 3246 | R0 = Bf.evaluate(0,0) |
---|
| 3247 | assert allclose(R0[0], ((s1[0] + s1[5])/2 + 2.0*(s2[0] + s2[5])/2)/3) |
---|
| 3248 | |
---|
| 3249 | #Second diagonal midpoint |
---|
| 3250 | R0 = Bf.evaluate(3,0) |
---|
| 3251 | assert allclose(R0[0], ((s1[5] + s1[10])/2 + 2.0*(s2[5] + s2[10])/2)/3) |
---|
| 3252 | |
---|
| 3253 | #First diagonal midpoint |
---|
| 3254 | R0 = Bf.evaluate(8,0) |
---|
| 3255 | assert allclose(R0[0], ((s1[10] + s1[15])/2 + 2.0*(s2[10] + s2[15])/2)/3) |
---|
| 3256 | |
---|
| 3257 | |
---|
| 3258 | |
---|
| 3259 | #Cleanup |
---|
| 3260 | os.remove(domain1.filename + '.' + domain1.format) |
---|
| 3261 | |
---|
| 3262 | |
---|
[2601] | 3263 | def test_pmesh2Domain(self): |
---|
| 3264 | import os |
---|
| 3265 | import tempfile |
---|
| 3266 | |
---|
| 3267 | fileName = tempfile.mktemp(".tsh") |
---|
| 3268 | file = open(fileName,"w") |
---|
| 3269 | file.write("4 3 # <vertex #> <x> <y> [attributes]\n \ |
---|
| 3270 | 0 0.0 0.0 0.0 0.0 0.01 \n \ |
---|
| 3271 | 1 1.0 0.0 10.0 10.0 0.02 \n \ |
---|
| 3272 | 2 0.0 1.0 0.0 10.0 0.03 \n \ |
---|
| 3273 | 3 0.5 0.25 8.0 12.0 0.04 \n \ |
---|
| 3274 | # Vert att title \n \ |
---|
| 3275 | elevation \n \ |
---|
| 3276 | stage \n \ |
---|
| 3277 | friction \n \ |
---|
| 3278 | 2 # <triangle #> [<vertex #>] [<neigbouring triangle #>] \n\ |
---|
| 3279 | 0 0 3 2 -1 -1 1 dsg\n\ |
---|
| 3280 | 1 0 1 3 -1 0 -1 ole nielsen\n\ |
---|
| 3281 | 4 # <segment #> <vertex #> <vertex #> [boundary tag] \n\ |
---|
| 3282 | 0 1 0 2 \n\ |
---|
| 3283 | 1 0 2 3 \n\ |
---|
| 3284 | 2 2 3 \n\ |
---|
| 3285 | 3 3 1 1 \n\ |
---|
| 3286 | 3 0 # <x> <y> [attributes] ...Mesh Vertices... \n \ |
---|
| 3287 | 0 216.0 -86.0 \n \ |
---|
| 3288 | 1 160.0 -167.0 \n \ |
---|
| 3289 | 2 114.0 -91.0 \n \ |
---|
| 3290 | 3 # <vertex #> <vertex #> [boundary tag] ...Mesh Segments... \n \ |
---|
| 3291 | 0 0 1 0 \n \ |
---|
| 3292 | 1 1 2 0 \n \ |
---|
| 3293 | 2 2 0 0 \n \ |
---|
| 3294 | 0 # <x> <y> ...Mesh Holes... \n \ |
---|
| 3295 | 0 # <x> <y> <attribute>...Mesh Regions... \n \ |
---|
| 3296 | 0 # <x> <y> <attribute>...Mesh Regions, area... \n\ |
---|
| 3297 | #Geo reference \n \ |
---|
| 3298 | 56 \n \ |
---|
| 3299 | 140 \n \ |
---|
| 3300 | 120 \n") |
---|
| 3301 | file.close() |
---|
| 3302 | |
---|
| 3303 | tags = {} |
---|
| 3304 | b1 = Dirichlet_boundary(conserved_quantities = array([0.0])) |
---|
| 3305 | b2 = Dirichlet_boundary(conserved_quantities = array([1.0])) |
---|
| 3306 | b3 = Dirichlet_boundary(conserved_quantities = array([2.0])) |
---|
| 3307 | tags["1"] = b1 |
---|
| 3308 | tags["2"] = b2 |
---|
| 3309 | tags["3"] = b3 |
---|
| 3310 | |
---|
[3560] | 3311 | #from anuga.abstract_2d_finite_volumes.pmesh2domain import pmesh_to_domain_instance |
---|
[2601] | 3312 | #domain = pmesh_to_domain_instance(fileName, Domain) |
---|
[2812] | 3313 | |
---|
| 3314 | domain = Domain(mesh_filename=fileName) |
---|
| 3315 | #verbose=True, use_cache=True) |
---|
[2601] | 3316 | |
---|
| 3317 | #print "domain.tagged_elements", domain.tagged_elements |
---|
| 3318 | ## check the quantities |
---|
| 3319 | #print domain.quantities['elevation'].vertex_values |
---|
| 3320 | answer = [[0., 8., 0.], |
---|
| 3321 | [0., 10., 8.]] |
---|
| 3322 | assert allclose(domain.quantities['elevation'].vertex_values, |
---|
| 3323 | answer) |
---|
| 3324 | |
---|
| 3325 | #print domain.quantities['stage'].vertex_values |
---|
| 3326 | answer = [[0., 12., 10.], |
---|
| 3327 | [0., 10., 12.]] |
---|
| 3328 | assert allclose(domain.quantities['stage'].vertex_values, |
---|
| 3329 | answer) |
---|
| 3330 | |
---|
| 3331 | #print domain.quantities['friction'].vertex_values |
---|
| 3332 | answer = [[0.01, 0.04, 0.03], |
---|
| 3333 | [0.01, 0.02, 0.04]] |
---|
| 3334 | assert allclose(domain.quantities['friction'].vertex_values, |
---|
| 3335 | answer) |
---|
| 3336 | |
---|
| 3337 | #print domain.quantities['friction'].vertex_values |
---|
| 3338 | assert allclose(domain.tagged_elements['dsg'][0],0) |
---|
| 3339 | assert allclose(domain.tagged_elements['ole nielsen'][0],1) |
---|
| 3340 | |
---|
| 3341 | self.failUnless( domain.boundary[(1, 0)] == '1', |
---|
| 3342 | "test_tags_to_boundaries failed. Single boundary wasn't added.") |
---|
| 3343 | self.failUnless( domain.boundary[(1, 2)] == '2', |
---|
| 3344 | "test_tags_to_boundaries failed. Single boundary wasn't added.") |
---|
| 3345 | self.failUnless( domain.boundary[(0, 1)] == '3', |
---|
| 3346 | "test_tags_to_boundaries failed. Single boundary wasn't added.") |
---|
| 3347 | self.failUnless( domain.boundary[(0, 0)] == 'exterior', |
---|
| 3348 | "test_tags_to_boundaries failed. Single boundary wasn't added.") |
---|
| 3349 | #print "domain.boundary",domain.boundary |
---|
| 3350 | self.failUnless( len(domain.boundary) == 4, |
---|
| 3351 | "test_pmesh2Domain Too many boundaries") |
---|
| 3352 | #FIXME change to use get_xllcorner |
---|
| 3353 | #print "d.geo_reference.xllcorner",domain.geo_reference.xllcorner |
---|
| 3354 | self.failUnless(domain.geo_reference.xllcorner == 140.0, |
---|
| 3355 | "bad geo_referece") |
---|
| 3356 | #************ |
---|
| 3357 | |
---|
[2765] | 3358 | |
---|
| 3359 | domain = Domain(fileName) |
---|
| 3360 | |
---|
| 3361 | #print "domain.tagged_elements", domain.tagged_elements |
---|
| 3362 | ## check the quantities |
---|
| 3363 | #print domain.quantities['elevation'].vertex_values |
---|
| 3364 | answer = [[0., 8., 0.], |
---|
| 3365 | [0., 10., 8.]] |
---|
| 3366 | assert allclose(domain.quantities['elevation'].vertex_values, |
---|
| 3367 | answer) |
---|
| 3368 | |
---|
| 3369 | #print domain.quantities['stage'].vertex_values |
---|
| 3370 | answer = [[0., 12., 10.], |
---|
| 3371 | [0., 10., 12.]] |
---|
| 3372 | assert allclose(domain.quantities['stage'].vertex_values, |
---|
| 3373 | answer) |
---|
| 3374 | |
---|
| 3375 | #print domain.quantities['friction'].vertex_values |
---|
| 3376 | answer = [[0.01, 0.04, 0.03], |
---|
| 3377 | [0.01, 0.02, 0.04]] |
---|
| 3378 | assert allclose(domain.quantities['friction'].vertex_values, |
---|
| 3379 | answer) |
---|
| 3380 | |
---|
| 3381 | #print domain.quantities['friction'].vertex_values |
---|
| 3382 | assert allclose(domain.tagged_elements['dsg'][0],0) |
---|
| 3383 | assert allclose(domain.tagged_elements['ole nielsen'][0],1) |
---|
| 3384 | |
---|
| 3385 | self.failUnless( domain.boundary[(1, 0)] == '1', |
---|
| 3386 | "test_tags_to_boundaries failed. Single boundary wasn't added.") |
---|
| 3387 | self.failUnless( domain.boundary[(1, 2)] == '2', |
---|
| 3388 | "test_tags_to_boundaries failed. Single boundary wasn't added.") |
---|
| 3389 | self.failUnless( domain.boundary[(0, 1)] == '3', |
---|
| 3390 | "test_tags_to_boundaries failed. Single boundary wasn't added.") |
---|
| 3391 | self.failUnless( domain.boundary[(0, 0)] == 'exterior', |
---|
| 3392 | "test_tags_to_boundaries failed. Single boundary wasn't added.") |
---|
| 3393 | #print "domain.boundary",domain.boundary |
---|
| 3394 | self.failUnless( len(domain.boundary) == 4, |
---|
| 3395 | "test_pmesh2Domain Too many boundaries") |
---|
| 3396 | #FIXME change to use get_xllcorner |
---|
| 3397 | #print "d.geo_reference.xllcorner",domain.geo_reference.xllcorner |
---|
| 3398 | self.failUnless(domain.geo_reference.xllcorner == 140.0, |
---|
| 3399 | "bad geo_referece") |
---|
| 3400 | #************ |
---|
| 3401 | os.remove(fileName) |
---|
| 3402 | |
---|
[2526] | 3403 | #------------------------------------------------------------- |
---|
| 3404 | if __name__ == "__main__": |
---|
| 3405 | suite = unittest.makeSuite(Test_Shallow_Water,'test') |
---|
[2709] | 3406 | runner = unittest.TextTestRunner(verbosity=1) |
---|
[2526] | 3407 | runner.run(suite) |
---|