| 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | |
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| 4 | import unittest |
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| 5 | import os.path |
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| 6 | import sys |
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| 7 | |
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| 8 | from anuga.utilities.system_tools import get_pathname_from_package |
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| 9 | from anuga.structures.boyd_box_operator import Boyd_box_operator |
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| 10 | from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular_cross |
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| 11 | from anuga.shallow_water.shallow_water_domain import Domain |
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| 12 | from anuga.shallow_water.forcing import Rainfall, Inflow |
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| 13 | import numpy |
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| 14 | |
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| 15 | |
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| 16 | class Test_boyd_box_operator(unittest.TestCase): |
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| 17 | """ |
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| 18 | Test the boyd box operator, in particular the discharge_routine! |
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| 19 | """ |
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| 20 | |
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| 21 | def setUp(self): |
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| 22 | pass |
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| 23 | |
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| 24 | def tearDown(self): |
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| 25 | pass |
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| 26 | |
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| 27 | |
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| 28 | def test_boyd_1(self): |
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| 29 | """test_boyd_1 |
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| 30 | |
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| 31 | This tests the Boyd routine with data obtained from culvertw application 1.1 by IceMindserer BD Parkinson, |
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| 32 | calculation code by MJ Boyd |
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| 33 | """ |
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| 34 | |
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| 35 | stage_0 = 11.0 |
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| 36 | stage_1 = 10.0 |
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| 37 | elevation_0 = 10.0 |
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| 38 | elevation_1 = 10.0 |
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| 39 | |
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| 40 | culvert_length = 20.0 |
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| 41 | culvert_width = 3.66 |
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| 42 | culvert_height = 3.66 |
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| 43 | culvert_losses = {'inlet':0.5, 'outlet':1.0, 'bend':0.0, 'grate':0.0, 'pier': 0.0, 'other': 0.0} |
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| 44 | culvert_mannings = 0.013 |
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| 45 | |
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| 46 | culvert_apron = 0.001 |
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| 47 | enquiry_gap = 1.0 |
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| 48 | |
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| 49 | expected_Q = 4.55 |
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| 50 | expected_v = 2.3 |
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| 51 | expected_d = 0.54 |
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| 52 | |
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| 53 | |
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| 54 | # Probably no need to change below here |
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| 55 | |
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| 56 | domain_length = 200. #x-Dir |
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| 57 | domain_width = 200. #y-dir |
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| 58 | dx = dy = 10.0 # Resolution: Length of subdivisions on both axes |
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| 59 | |
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| 60 | |
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| 61 | points, vertices, boundary = rectangular_cross(int(domain_length/dx), int(domain_width/dy), |
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| 62 | len1=domain_length, len2=domain_width) |
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| 63 | domain = Domain(points, vertices, boundary) |
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| 64 | domain.set_name('Test_Outlet_Inlet') # Output name |
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| 65 | domain.set_default_order(2) |
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| 66 | domain.H0 = 0.01 |
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| 67 | domain.tight_slope_limiters = 1 |
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| 68 | |
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| 69 | print 'Size', len(domain) |
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| 70 | |
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| 71 | #------------------------------------------------------------------------------ |
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| 72 | # Setup initial conditions |
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| 73 | #------------------------------------------------------------------------------ |
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| 74 | |
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| 75 | def elevation(x, y): |
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| 76 | """Set up a elevation |
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| 77 | """ |
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| 78 | |
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| 79 | z = numpy.zeros(x.shape,dtype='d') |
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| 80 | z[:] = elevation_0 |
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| 81 | |
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| 82 | numpy.putmask(z, x > domain_length/2, elevation_1) |
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| 83 | |
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| 84 | return z |
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| 85 | |
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| 86 | def stage(x,y): |
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| 87 | """Set up stage |
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| 88 | """ |
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| 89 | z = numpy.zeros(x.shape,dtype='d') |
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| 90 | z[:] = stage_0 |
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| 91 | |
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| 92 | numpy.putmask(z, x > domain_length/2, stage_1) |
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| 93 | |
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| 94 | return z |
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| 95 | |
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| 96 | print 'Setting Quantities....' |
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| 97 | domain.set_quantity('elevation', elevation) # Use function for elevation |
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| 98 | domain.set_quantity('stage', stage) # Use function for elevation |
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| 99 | |
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| 100 | |
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| 101 | print 'Defining Structures' |
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| 102 | |
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| 103 | culvert = Boyd_box_operator(domain, |
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| 104 | label='3.6x3.6RCBC', |
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| 105 | end_point0=[domain_length/2-culvert_length/2, 100.0], |
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| 106 | end_point1=[domain_length/2+culvert_length/2, 100.0], |
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| 107 | losses=culvert_losses, |
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| 108 | width=culvert_width, |
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| 109 | height=culvert_height, |
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| 110 | apron=culvert_apron, |
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| 111 | enquiry_gap=enquiry_gap, |
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| 112 | use_momentum_jet=False, |
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| 113 | use_velocity_head=False, |
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| 114 | manning=culvert_mannings, |
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| 115 | verbose=False) |
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| 116 | |
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| 117 | |
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| 118 | culvert.determine_inflow_outflow() |
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| 119 | |
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| 120 | ( Q, v, d ) = culvert.discharge_routine() |
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| 121 | |
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| 122 | |
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| 123 | assert numpy.allclose(Q, expected_Q, rtol=1.0e-2) #inflow |
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| 124 | assert numpy.allclose(v, expected_v, rtol=1.0e-2) #outflow velocity |
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| 125 | assert numpy.allclose(d, expected_d, rtol=1.0e-2) #depth at outlet used to calc v |
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| 126 | |
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| 127 | |
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| 128 | # ========================================================================= |
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| 129 | if __name__ == "__main__": |
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| 130 | suite = unittest.makeSuite(Test_boyd_box_operator, 'test') |
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| 131 | runner = unittest.TextTestRunner() |
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| 132 | runner.run(suite) |
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