1 | import unittest |
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2 | import copy |
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3 | import os |
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4 | import numpy as num |
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5 | |
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6 | from anuga.coordinate_transforms.geo_reference import Geo_reference |
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7 | from anuga.geometry.polygon import is_inside_polygon |
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8 | from anuga.abstract_2d_finite_volumes.util import file_function |
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9 | from anuga.config import netcdf_mode_r, netcdf_mode_w, netcdf_mode_a |
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10 | from anuga.config import g |
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11 | |
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12 | from boundaries import Reflective_boundary, \ |
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13 | Field_boundary, Transmissive_momentum_set_stage_boundary, \ |
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14 | Transmissive_stage_zero_momentum_boundary |
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15 | from anuga.abstract_2d_finite_volumes.generic_boundary_conditions\ |
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16 | import Transmissive_boundary, Dirichlet_boundary, \ |
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17 | Time_boundary, File_boundary, AWI_boundary |
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18 | |
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19 | from anuga.file.sww import get_mesh_and_quantities_from_file |
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20 | |
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21 | from shallow_water_domain import Domain |
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22 | |
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23 | from anuga.abstract_2d_finite_volumes.mesh_factory \ |
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24 | import rectangular_cross |
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25 | from sww_interrogate import get_maximum_inundation_elevation, \ |
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26 | get_maximum_inundation_location, get_maximum_inundation_data, \ |
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27 | get_flow_through_cross_section, get_energy_through_cross_section |
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28 | |
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29 | |
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30 | |
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31 | |
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32 | class Test_sww_Interrogate(unittest.TestCase): |
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33 | def test_get_maximum_inundation(self): |
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34 | """Test that sww information can be converted correctly to maximum |
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35 | runup elevation and location (without and with georeferencing) |
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36 | |
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37 | This test creates a slope and a runup which is maximal (~11m) at around 10s |
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38 | and levels out to the boundary condition (1m) at about 30s. |
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39 | """ |
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40 | |
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41 | import time, os |
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42 | from Scientific.IO.NetCDF import NetCDFFile |
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43 | |
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44 | #Setup |
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45 | |
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46 | from mesh_factory import rectangular |
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47 | |
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48 | # Create basic mesh (100m x 100m) |
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49 | points, vertices, boundary = rectangular(20, 5, 100, 50) |
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50 | |
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51 | # Create shallow water domain |
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52 | domain = Domain(points, vertices, boundary) |
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53 | domain.default_order = 2 |
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54 | domain.set_minimum_storable_height(0.01) |
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55 | |
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56 | domain.set_name('runuptest') |
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57 | swwfile = domain.get_name() + '.sww' |
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58 | |
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59 | domain.set_datadir('.') |
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60 | domain.format = 'sww' |
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61 | domain.smooth = True |
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62 | |
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63 | # FIXME (Ole): Backwards compatibility |
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64 | # Look at sww file and see what happens when |
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65 | # domain.tight_slope_limiters = 1 |
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66 | domain.tight_slope_limiters = 0 |
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67 | domain.use_centroid_velocities = 0 # Backwards compatibility (7/5/8) |
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68 | |
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69 | Br = Reflective_boundary(domain) |
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70 | Bd = Dirichlet_boundary([1.0,0,0]) |
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71 | |
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72 | |
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73 | #---------- First run without geo referencing |
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74 | |
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75 | domain.set_quantity('elevation', lambda x,y: -0.2*x + 14) # Slope |
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76 | domain.set_quantity('stage', -6) |
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77 | domain.set_boundary( {'left': Br, 'right': Bd, 'top': Br, 'bottom': Br}) |
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78 | |
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79 | for t in domain.evolve(yieldstep=1, finaltime = 50): |
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80 | pass |
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81 | |
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82 | |
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83 | # Check maximal runup |
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84 | runup = get_maximum_inundation_elevation(swwfile) |
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85 | location = get_maximum_inundation_location(swwfile) |
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86 | #print 'Runup, location', runup, location |
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87 | assert num.allclose(runup, 11) or num.allclose(runup, 12) # old limiters |
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88 | assert num.allclose(location[0], 15) or num.allclose(location[0], 10) |
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89 | |
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90 | # Check final runup |
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91 | runup = get_maximum_inundation_elevation(swwfile, time_interval=[45,50]) |
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92 | location = get_maximum_inundation_location(swwfile, time_interval=[45,50]) |
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93 | # print 'Runup, location:',runup, location |
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94 | assert num.allclose(runup, 1) |
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95 | assert num.allclose(location[0], 65) |
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96 | |
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97 | # Check runup restricted to a polygon |
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98 | p = [[50,1], [99,1], [99,49], [50,49]] |
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99 | runup = get_maximum_inundation_elevation(swwfile, polygon=p) |
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100 | location = get_maximum_inundation_location(swwfile, polygon=p) |
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101 | #print runup, location |
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102 | assert num.allclose(runup, 4) |
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103 | assert num.allclose(location[0], 50) |
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104 | |
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105 | # Check that mimimum_storable_height works |
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106 | fid = NetCDFFile(swwfile, netcdf_mode_r) # Open existing file |
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107 | |
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108 | stage = fid.variables['stage'][:] |
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109 | z = fid.variables['elevation'][:] |
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110 | xmomentum = fid.variables['xmomentum'][:] |
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111 | ymomentum = fid.variables['ymomentum'][:] |
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112 | |
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113 | |
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114 | |
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115 | for i in range(stage.shape[0]): |
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116 | h = stage[i]-z # depth vector at time step i |
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117 | |
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118 | # Check every node location |
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119 | for j in range(stage.shape[1]): |
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120 | # Depth being either exactly zero implies |
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121 | # momentum being zero. |
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122 | # Or else depth must be greater than or equal to |
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123 | # the minimal storable height |
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124 | if h[j] == 0.0: |
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125 | assert xmomentum[i,j] == 0.0 |
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126 | assert ymomentum[i,j] == 0.0 |
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127 | else: |
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128 | assert h[j] >= domain.minimum_storable_height |
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129 | |
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130 | fid.close() |
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131 | |
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132 | # Cleanup |
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133 | os.remove(swwfile) |
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134 | |
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135 | |
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136 | |
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137 | #------------- Now the same with georeferencing |
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138 | |
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139 | domain.time=0.0 |
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140 | E = 308500 |
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141 | N = 6189000 |
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142 | #E = N = 0 |
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143 | domain.geo_reference = Geo_reference(56, E, N) |
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144 | |
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145 | domain.set_quantity('elevation', lambda x,y: -0.2*x + 14) # Slope |
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146 | domain.set_quantity('stage', -6) |
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147 | domain.set_boundary( {'left': Br, 'right': Bd, 'top': Br, 'bottom': Br}) |
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148 | |
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149 | for t in domain.evolve(yieldstep=1, finaltime = 50): |
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150 | pass |
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151 | |
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152 | # Check maximal runup |
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153 | runup = get_maximum_inundation_elevation(swwfile) |
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154 | location = get_maximum_inundation_location(swwfile) |
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155 | assert num.allclose(runup, 11) or num.allclose(runup, 12) # old limiters |
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156 | assert num.allclose(location[0], 15+E) or num.allclose(location[0], 10+E) |
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157 | |
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158 | # Check final runup |
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159 | runup = get_maximum_inundation_elevation(swwfile, time_interval=[45,50]) |
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160 | location = get_maximum_inundation_location(swwfile, time_interval=[45,50]) |
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161 | assert num.allclose(runup, 1) |
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162 | assert num.allclose(location[0], 65+E) |
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163 | |
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164 | # Check runup restricted to a polygon |
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165 | p = num.array([[50,1], [99,1], [99,49], [50,49]], num.int) + num.array([E, N], num.int) #array default# |
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166 | |
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167 | runup = get_maximum_inundation_elevation(swwfile, polygon=p) |
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168 | location = get_maximum_inundation_location(swwfile, polygon=p) |
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169 | assert num.allclose(runup, 4) |
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170 | assert num.allclose(location[0], 50+E) |
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171 | |
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172 | |
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173 | # Cleanup |
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174 | os.remove(swwfile) |
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175 | |
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176 | |
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177 | |
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178 | def test_get_flow_through_cross_section(self): |
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179 | """test_get_flow_through_cross_section(self): |
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180 | |
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181 | Test that the total flow through a cross section can be |
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182 | correctly obtained from an sww file. |
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183 | |
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184 | This test creates a flat bed with a known flow through it and tests |
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185 | that the function correctly returns the expected flow. |
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186 | |
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187 | The specifics are |
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188 | u = 2 m/s |
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189 | h = 1 m |
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190 | w = 3 m (width of channel) |
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191 | |
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192 | q = u*h*w = 6 m^3/s |
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193 | |
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194 | #---------- First run without geo referencing |
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195 | |
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196 | """ |
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197 | |
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198 | import time, os |
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199 | from Scientific.IO.NetCDF import NetCDFFile |
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200 | |
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201 | # Setup |
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202 | from mesh_factory import rectangular |
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203 | |
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204 | # Create basic mesh (20m x 3m) |
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205 | width = 3 |
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206 | length = 20 |
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207 | t_end = 3 |
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208 | points, vertices, boundary = rectangular(length, width, |
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209 | length, width) |
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210 | |
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211 | # Create shallow water domain |
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212 | domain = Domain(points, vertices, boundary) |
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213 | domain.default_order = 2 |
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214 | domain.set_minimum_storable_height(0.01) |
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215 | |
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216 | domain.set_name('flowtest') |
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217 | swwfile = domain.get_name() + '.sww' |
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218 | |
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219 | domain.set_datadir('.') |
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220 | domain.format = 'sww' |
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221 | domain.smooth = True |
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222 | |
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223 | h = 1.0 |
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224 | u = 2.0 |
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225 | uh = u*h |
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226 | |
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227 | Br = Reflective_boundary(domain) # Side walls |
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228 | Bd = Dirichlet_boundary([h, uh, 0]) # 2 m/s across the 3 m inlet: |
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229 | |
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230 | |
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231 | |
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232 | domain.set_quantity('elevation', 0.0) |
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233 | domain.set_quantity('stage', h) |
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234 | domain.set_quantity('xmomentum', uh) |
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235 | domain.set_boundary( {'left': Bd, 'right': Bd, 'top': Br, 'bottom': Br}) |
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236 | |
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237 | for t in domain.evolve(yieldstep=1, finaltime = t_end): |
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238 | pass |
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239 | |
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240 | # Check that momentum is as it should be in the interior |
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241 | |
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242 | I = [[0, width/2.], |
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243 | [length/2., width/2.], |
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244 | [length, width/2.]] |
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245 | |
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246 | f = file_function(swwfile, |
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247 | quantities=['stage', 'xmomentum', 'ymomentum'], |
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248 | interpolation_points=I, |
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249 | verbose=False) |
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250 | for t in range(t_end+1): |
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251 | for i in range(3): |
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252 | assert num.allclose(f(t, i), [1, 2, 0], atol=1.0e-6) |
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253 | |
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254 | |
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255 | # Check flows through the middle |
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256 | for i in range(5): |
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257 | x = length/2. + i*0.23674563 # Arbitrary |
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258 | cross_section = [[x, 0], [x, width]] |
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259 | time, Q = get_flow_through_cross_section(swwfile, |
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260 | cross_section, |
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261 | verbose=False) |
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262 | |
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263 | assert num.allclose(Q, uh*width) |
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264 | |
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265 | |
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266 | |
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267 | # Try the same with partial lines |
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268 | x = length/2. |
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269 | for i in range(5): |
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270 | start_point = [length/2., i*width/5.] |
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271 | #print start_point |
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272 | |
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273 | cross_section = [start_point, [length/2., width]] |
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274 | time, Q = get_flow_through_cross_section(swwfile, |
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275 | cross_section, |
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276 | verbose=False) |
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277 | |
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278 | #print i, Q, (width-start_point[1]) |
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279 | assert num.allclose(Q, uh*(width-start_point[1])) |
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280 | |
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281 | |
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282 | # Verify no flow when line is parallel to flow |
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283 | cross_section = [[length/2.-10, width/2.], [length/2.+10, width/2.]] |
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284 | time, Q = get_flow_through_cross_section(swwfile, |
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285 | cross_section, |
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286 | verbose=False) |
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287 | |
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288 | #print i, Q |
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289 | assert num.allclose(Q, 0, atol=1.0e-5) |
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290 | |
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291 | |
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292 | # Try with lines on an angle (all flow still runs through here) |
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293 | cross_section = [[length/2., 0], [length/2.+width, width]] |
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294 | time, Q = get_flow_through_cross_section(swwfile, |
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295 | cross_section, |
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296 | verbose=False) |
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297 | |
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298 | assert num.allclose(Q, uh*width) |
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299 | |
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300 | |
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301 | |
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302 | |
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303 | def test_get_flow_through_cross_section_with_geo(self): |
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304 | """test_get_flow_through_cross_section(self): |
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305 | |
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306 | Test that the total flow through a cross section can be |
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307 | correctly obtained from an sww file. |
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308 | |
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309 | This test creates a flat bed with a known flow through it and tests |
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310 | that the function correctly returns the expected flow. |
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311 | |
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312 | The specifics are |
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313 | u = 2 m/s |
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314 | h = 2 m |
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315 | w = 3 m (width of channel) |
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316 | |
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317 | q = u*h*w = 12 m^3/s |
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318 | |
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319 | |
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320 | This run tries it with georeferencing and with elevation = -1 |
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321 | |
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322 | """ |
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323 | |
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324 | import time, os |
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325 | from Scientific.IO.NetCDF import NetCDFFile |
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326 | |
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327 | # Setup |
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328 | from mesh_factory import rectangular |
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329 | |
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330 | # Create basic mesh (20m x 3m) |
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331 | width = 3 |
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332 | length = 20 |
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333 | t_end = 1 |
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334 | points, vertices, boundary = rectangular(length, width, |
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335 | length, width) |
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336 | |
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337 | # Create shallow water domain |
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338 | domain = Domain(points, vertices, boundary, |
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339 | geo_reference = Geo_reference(56,308500,6189000)) |
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340 | |
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341 | domain.default_order = 2 |
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342 | domain.set_minimum_storable_height(0.01) |
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343 | |
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344 | domain.set_name('flowtest') |
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345 | swwfile = domain.get_name() + '.sww' |
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346 | |
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347 | domain.set_datadir('.') |
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348 | domain.format = 'sww' |
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349 | domain.smooth = True |
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350 | |
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351 | e = -1.0 |
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352 | w = 1.0 |
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353 | h = w-e |
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354 | u = 2.0 |
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355 | uh = u*h |
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356 | |
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357 | Br = Reflective_boundary(domain) # Side walls |
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358 | Bd = Dirichlet_boundary([w, uh, 0]) # 2 m/s across the 3 m inlet: |
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359 | |
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360 | |
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361 | |
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362 | |
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363 | domain.set_quantity('elevation', e) |
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364 | domain.set_quantity('stage', w) |
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365 | domain.set_quantity('xmomentum', uh) |
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366 | domain.set_boundary( {'left': Bd, 'right': Bd, 'top': Br, 'bottom': Br}) |
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367 | |
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368 | for t in domain.evolve(yieldstep=1, finaltime = t_end): |
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369 | pass |
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370 | |
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371 | # Check that momentum is as it should be in the interior |
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372 | |
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373 | I = [[0, width/2.], |
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374 | [length/2., width/2.], |
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375 | [length, width/2.]] |
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376 | |
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377 | I = domain.geo_reference.get_absolute(I) |
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378 | f = file_function(swwfile, |
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379 | quantities=['stage', 'xmomentum', 'ymomentum'], |
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380 | interpolation_points=I, |
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381 | verbose=False) |
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382 | |
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383 | for t in range(t_end+1): |
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384 | for i in range(3): |
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385 | #print i, t, f(t, i) |
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386 | assert num.allclose(f(t, i), [w, uh, 0], atol=1.0e-6) |
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387 | |
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388 | |
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389 | # Check flows through the middle |
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390 | for i in range(5): |
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391 | x = length/2. + i*0.23674563 # Arbitrary |
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392 | cross_section = [[x, 0], [x, width]] |
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393 | |
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394 | cross_section = domain.geo_reference.get_absolute(cross_section) |
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395 | time, Q = get_flow_through_cross_section(swwfile, |
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396 | cross_section, |
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397 | verbose=False) |
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398 | |
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399 | assert num.allclose(Q, uh*width) |
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400 | |
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401 | |
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402 | |
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403 | def test_get_energy_through_cross_section(self): |
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404 | """test_get_energy_through_cross_section(self): |
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405 | |
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406 | Test that the specific and total energy through a cross section can be |
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407 | correctly obtained from an sww file. |
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408 | |
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409 | This test creates a flat bed with a known flow through it and tests |
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410 | that the function correctly returns the expected energies. |
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411 | |
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412 | The specifics are |
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413 | u = 2 m/s |
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414 | h = 1 m |
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415 | w = 3 m (width of channel) |
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416 | |
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417 | q = u*h*w = 6 m^3/s |
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418 | Es = h + 0.5*v*v/g # Specific energy head [m] |
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419 | Et = w + 0.5*v*v/g # Total energy head [m] |
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420 | |
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421 | |
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422 | This test uses georeferencing |
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423 | |
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424 | """ |
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425 | |
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426 | import time, os |
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427 | from Scientific.IO.NetCDF import NetCDFFile |
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428 | |
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429 | # Setup |
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430 | from mesh_factory import rectangular |
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431 | |
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432 | # Create basic mesh (20m x 3m) |
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433 | width = 3 |
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434 | length = 20 |
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435 | t_end = 1 |
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436 | points, vertices, boundary = rectangular(length, width, |
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437 | length, width) |
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438 | |
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439 | # Create shallow water domain |
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440 | domain = Domain(points, vertices, boundary, |
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441 | geo_reference = Geo_reference(56,308500,6189000)) |
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442 | |
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443 | domain.default_order = 2 |
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444 | domain.set_minimum_storable_height(0.01) |
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445 | |
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446 | domain.set_name('flowtest') |
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447 | swwfile = domain.get_name() + '.sww' |
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448 | |
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449 | domain.set_datadir('.') |
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450 | domain.format = 'sww' |
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451 | domain.smooth = True |
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452 | |
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453 | e = -1.0 |
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454 | w = 1.0 |
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455 | h = w-e |
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456 | u = 2.0 |
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457 | uh = u*h |
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458 | |
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459 | Br = Reflective_boundary(domain) # Side walls |
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460 | Bd = Dirichlet_boundary([w, uh, 0]) # 2 m/s across the 3 m inlet: |
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461 | |
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462 | |
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463 | domain.set_quantity('elevation', e) |
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464 | domain.set_quantity('stage', w) |
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465 | domain.set_quantity('xmomentum', uh) |
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466 | domain.set_boundary( {'left': Bd, 'right': Bd, 'top': Br, 'bottom': Br}) |
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467 | |
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468 | for t in domain.evolve(yieldstep=1, finaltime = t_end): |
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469 | pass |
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470 | |
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471 | # Check that momentum is as it should be in the interior |
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472 | |
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473 | I = [[0, width/2.], |
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474 | [length/2., width/2.], |
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475 | [length, width/2.]] |
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476 | |
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477 | I = domain.geo_reference.get_absolute(I) |
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478 | f = file_function(swwfile, |
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479 | quantities=['stage', 'xmomentum', 'ymomentum'], |
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480 | interpolation_points=I, |
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481 | verbose=False) |
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482 | |
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483 | for t in range(t_end+1): |
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484 | for i in range(3): |
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485 | #print i, t, f(t, i) |
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486 | assert num.allclose(f(t, i), [w, uh, 0], atol=1.0e-6) |
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487 | |
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488 | |
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489 | # Check energies through the middle |
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490 | for i in range(5): |
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491 | x = length/2. + i*0.23674563 # Arbitrary |
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492 | cross_section = [[x, 0], [x, width]] |
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493 | |
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494 | cross_section = domain.geo_reference.get_absolute(cross_section) |
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495 | |
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496 | time, Es = get_energy_through_cross_section(swwfile, |
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497 | cross_section, |
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498 | kind='specific', |
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499 | verbose=False) |
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500 | assert num.allclose(Es, h + 0.5*u*u/g) |
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501 | |
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502 | time, Et = get_energy_through_cross_section(swwfile, |
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503 | cross_section, |
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504 | kind='total', |
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505 | verbose=False) |
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506 | assert num.allclose(Et, w + 0.5*u*u/g) |
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507 | |
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508 | |
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509 | |
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510 | def test_get_maximum_inundation_from_sww(self): |
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511 | """test_get_maximum_inundation_from_sww(self) |
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512 | |
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513 | Test of get_maximum_inundation_elevation() |
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514 | and get_maximum_inundation_location() from data_manager.py |
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515 | |
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516 | This is based on test_get_maximum_inundation_3(self) but works with the |
---|
517 | stored results instead of with the internal data structure. |
---|
518 | |
---|
519 | This test uses the underlying get_maximum_inundation_data for tests |
---|
520 | """ |
---|
521 | |
---|
522 | |
---|
523 | initial_runup_height = -0.4 |
---|
524 | final_runup_height = -0.3 |
---|
525 | |
---|
526 | #-------------------------------------------------------------- |
---|
527 | # Setup computational domain |
---|
528 | #-------------------------------------------------------------- |
---|
529 | N = 10 |
---|
530 | points, vertices, boundary = rectangular_cross(N, N) |
---|
531 | domain = Domain(points, vertices, boundary) |
---|
532 | domain.set_name('runup_test') |
---|
533 | domain.set_maximum_allowed_speed(1.0) |
---|
534 | |
---|
535 | # FIXME: This works better with old limiters so far |
---|
536 | domain.tight_slope_limiters = 0 |
---|
537 | |
---|
538 | #-------------------------------------------------------------- |
---|
539 | # Setup initial conditions |
---|
540 | #-------------------------------------------------------------- |
---|
541 | def topography(x, y): |
---|
542 | return -x/2 # linear bed slope |
---|
543 | |
---|
544 | # Use function for elevation |
---|
545 | domain.set_quantity('elevation', topography) |
---|
546 | domain.set_quantity('friction', 0.) # Zero friction |
---|
547 | # Constant negative initial stage |
---|
548 | domain.set_quantity('stage', initial_runup_height) |
---|
549 | |
---|
550 | #-------------------------------------------------------------- |
---|
551 | # Setup boundary conditions |
---|
552 | #-------------------------------------------------------------- |
---|
553 | Br = Reflective_boundary(domain) # Reflective wall |
---|
554 | Bd = Dirichlet_boundary([final_runup_height, 0, 0]) # Constant inflow |
---|
555 | |
---|
556 | # All reflective to begin with (still water) |
---|
557 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
558 | |
---|
559 | #-------------------------------------------------------------- |
---|
560 | # Test initial inundation height |
---|
561 | #-------------------------------------------------------------- |
---|
562 | indices = domain.get_wet_elements() |
---|
563 | z = domain.get_quantity('elevation').\ |
---|
564 | get_values(location='centroids', indices=indices) |
---|
565 | assert num.alltrue(z < initial_runup_height) |
---|
566 | |
---|
567 | q_ref = domain.get_maximum_inundation_elevation() |
---|
568 | # First order accuracy |
---|
569 | assert num.allclose(q_ref, initial_runup_height, rtol=1.0/N) |
---|
570 | |
---|
571 | #-------------------------------------------------------------- |
---|
572 | # Let triangles adjust |
---|
573 | #-------------------------------------------------------------- |
---|
574 | for t in domain.evolve(yieldstep = 0.1, finaltime = 1.0): |
---|
575 | pass |
---|
576 | |
---|
577 | #-------------------------------------------------------------- |
---|
578 | # Test inundation height again |
---|
579 | #-------------------------------------------------------------- |
---|
580 | q_ref = domain.get_maximum_inundation_elevation() |
---|
581 | q = get_maximum_inundation_elevation('runup_test.sww') |
---|
582 | msg = 'We got %f, should have been %f' % (q, q_ref) |
---|
583 | assert num.allclose(q, q_ref, rtol=1.0/N), msg |
---|
584 | |
---|
585 | q = get_maximum_inundation_elevation('runup_test.sww') |
---|
586 | msg = 'We got %f, should have been %f' % (q, initial_runup_height) |
---|
587 | assert num.allclose(q, initial_runup_height, rtol = 1.0/N), msg |
---|
588 | |
---|
589 | # Test error condition if time interval is out |
---|
590 | try: |
---|
591 | q = get_maximum_inundation_elevation('runup_test.sww', |
---|
592 | time_interval=[2.0, 3.0]) |
---|
593 | except ValueError: |
---|
594 | pass |
---|
595 | else: |
---|
596 | msg = 'should have caught wrong time interval' |
---|
597 | raise Exception, msg |
---|
598 | |
---|
599 | # Check correct time interval |
---|
600 | q, loc = get_maximum_inundation_data('runup_test.sww', |
---|
601 | time_interval=[0.0, 3.0]) |
---|
602 | msg = 'We got %f, should have been %f' % (q, initial_runup_height) |
---|
603 | assert num.allclose(q, initial_runup_height, rtol = 1.0/N), msg |
---|
604 | assert num.allclose(-loc[0]/2, q) # From topography formula |
---|
605 | |
---|
606 | #-------------------------------------------------------------- |
---|
607 | # Update boundary to allow inflow |
---|
608 | #-------------------------------------------------------------- |
---|
609 | domain.set_boundary({'right': Bd}) |
---|
610 | |
---|
611 | #-------------------------------------------------------------- |
---|
612 | # Evolve system through time |
---|
613 | #-------------------------------------------------------------- |
---|
614 | q_max = None |
---|
615 | for t in domain.evolve(yieldstep = 0.1, finaltime = 3.0, |
---|
616 | skip_initial_step = True): |
---|
617 | q = domain.get_maximum_inundation_elevation() |
---|
618 | if q > q_max: |
---|
619 | q_max = q |
---|
620 | |
---|
621 | #-------------------------------------------------------------- |
---|
622 | # Test inundation height again |
---|
623 | #-------------------------------------------------------------- |
---|
624 | indices = domain.get_wet_elements() |
---|
625 | z = domain.get_quantity('elevation').\ |
---|
626 | get_values(location='centroids', indices=indices) |
---|
627 | |
---|
628 | assert num.alltrue(z < final_runup_height) |
---|
629 | |
---|
630 | q = domain.get_maximum_inundation_elevation() |
---|
631 | # First order accuracy |
---|
632 | assert num.allclose(q, final_runup_height, rtol=1.0/N) |
---|
633 | |
---|
634 | q, loc = get_maximum_inundation_data('runup_test.sww', |
---|
635 | time_interval=[3.0, 3.0]) |
---|
636 | msg = 'We got %f, should have been %f' % (q, final_runup_height) |
---|
637 | assert num.allclose(q, final_runup_height, rtol=1.0/N), msg |
---|
638 | assert num.allclose(-loc[0]/2, q) # From topography formula |
---|
639 | |
---|
640 | q = get_maximum_inundation_elevation('runup_test.sww') |
---|
641 | loc = get_maximum_inundation_location('runup_test.sww') |
---|
642 | msg = 'We got %f, should have been %f' % (q, q_max) |
---|
643 | assert num.allclose(q, q_max, rtol=1.0/N), msg |
---|
644 | assert num.allclose(-loc[0]/2, q) # From topography formula |
---|
645 | |
---|
646 | q = get_maximum_inundation_elevation('runup_test.sww', |
---|
647 | time_interval=[0, 3]) |
---|
648 | msg = 'We got %f, should have been %f' % (q, q_max) |
---|
649 | assert num.allclose(q, q_max, rtol=1.0/N), msg |
---|
650 | |
---|
651 | # Check polygon mode |
---|
652 | # Runup region |
---|
653 | polygon = [[0.3, 0.0], [0.9, 0.0], [0.9, 1.0], [0.3, 1.0]] |
---|
654 | q = get_maximum_inundation_elevation('runup_test.sww', |
---|
655 | polygon = polygon, |
---|
656 | time_interval=[0, 3]) |
---|
657 | msg = 'We got %f, should have been %f' % (q, q_max) |
---|
658 | assert num.allclose(q, q_max, rtol=1.0/N), msg |
---|
659 | |
---|
660 | # Offshore region |
---|
661 | polygon = [[0.9, 0.0], [1.0, 0.0], [1.0, 1.0], [0.9, 1.0]] |
---|
662 | q, loc = get_maximum_inundation_data('runup_test.sww', |
---|
663 | polygon = polygon, |
---|
664 | time_interval=[0, 3]) |
---|
665 | msg = 'We got %f, should have been %f' % (q, -0.475) |
---|
666 | assert num.allclose(q, -0.475, rtol=1.0/N), msg |
---|
667 | assert is_inside_polygon(loc, polygon) |
---|
668 | assert num.allclose(-loc[0]/2, q) # From topography formula |
---|
669 | |
---|
670 | # Dry region |
---|
671 | polygon = [[0.0, 0.0], [0.4, 0.0], [0.4, 1.0], [0.0, 1.0]] |
---|
672 | q, loc = get_maximum_inundation_data('runup_test.sww', |
---|
673 | polygon = polygon, |
---|
674 | time_interval=[0, 3]) |
---|
675 | msg = 'We got %s, should have been None' % (q) |
---|
676 | assert q is None, msg |
---|
677 | msg = 'We got %s, should have been None' % (loc) |
---|
678 | assert loc is None, msg |
---|
679 | |
---|
680 | # Check what happens if no time point is within interval |
---|
681 | try: |
---|
682 | q = get_maximum_inundation_elevation('runup_test.sww', |
---|
683 | time_interval=[2.75, 2.75]) |
---|
684 | except AssertionError: |
---|
685 | pass |
---|
686 | else: |
---|
687 | msg = 'Time interval should have raised an exception' |
---|
688 | raise Exception, msg |
---|
689 | |
---|
690 | # Cleanup |
---|
691 | try: |
---|
692 | os.remove(domain.get_name() + '.sww') |
---|
693 | except: |
---|
694 | pass |
---|
695 | #FIXME(Ole): Windows won't allow removal of this |
---|
696 | |
---|
697 | |
---|
698 | def test_get_maximum_inundation_from_sww(self): |
---|
699 | """test_get_maximum_inundation_from_sww(self) |
---|
700 | |
---|
701 | Test of get_maximum_inundation_elevation() |
---|
702 | and get_maximum_inundation_location(). |
---|
703 | |
---|
704 | This is based on test_get_maximum_inundation_3(self) but works with the |
---|
705 | stored results instead of with the internal data structure. |
---|
706 | |
---|
707 | This test uses the underlying get_maximum_inundation_data for tests |
---|
708 | """ |
---|
709 | |
---|
710 | initial_runup_height = -0.4 |
---|
711 | final_runup_height = -0.3 |
---|
712 | |
---|
713 | #-------------------------------------------------------------- |
---|
714 | # Setup computational domain |
---|
715 | #-------------------------------------------------------------- |
---|
716 | N = 10 |
---|
717 | points, vertices, boundary = rectangular_cross(N, N) |
---|
718 | domain = Domain(points, vertices, boundary) |
---|
719 | domain.set_name('runup_test') |
---|
720 | domain.set_maximum_allowed_speed(1.0) |
---|
721 | |
---|
722 | # FIXME: This works better with old limiters so far |
---|
723 | domain.tight_slope_limiters = 0 |
---|
724 | |
---|
725 | #-------------------------------------------------------------- |
---|
726 | # Setup initial conditions |
---|
727 | #-------------------------------------------------------------- |
---|
728 | def topography(x, y): |
---|
729 | return -x/2 # linear bed slope |
---|
730 | |
---|
731 | # Use function for elevation |
---|
732 | domain.set_quantity('elevation', topography) |
---|
733 | domain.set_quantity('friction', 0.) # Zero friction |
---|
734 | # Constant negative initial stage |
---|
735 | domain.set_quantity('stage', initial_runup_height) |
---|
736 | |
---|
737 | #-------------------------------------------------------------- |
---|
738 | # Setup boundary conditions |
---|
739 | #-------------------------------------------------------------- |
---|
740 | Br = Reflective_boundary(domain) # Reflective wall |
---|
741 | Bd = Dirichlet_boundary([final_runup_height, 0, 0]) # Constant inflow |
---|
742 | |
---|
743 | # All reflective to begin with (still water) |
---|
744 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
745 | |
---|
746 | #-------------------------------------------------------------- |
---|
747 | # Test initial inundation height |
---|
748 | #-------------------------------------------------------------- |
---|
749 | indices = domain.get_wet_elements() |
---|
750 | z = domain.get_quantity('elevation').\ |
---|
751 | get_values(location='centroids', indices=indices) |
---|
752 | assert num.alltrue(z < initial_runup_height) |
---|
753 | |
---|
754 | q_ref = domain.get_maximum_inundation_elevation() |
---|
755 | # First order accuracy |
---|
756 | assert num.allclose(q_ref, initial_runup_height, rtol=1.0/N) |
---|
757 | |
---|
758 | #-------------------------------------------------------------- |
---|
759 | # Let triangles adjust |
---|
760 | #-------------------------------------------------------------- |
---|
761 | for t in domain.evolve(yieldstep = 0.1, finaltime = 1.0): |
---|
762 | pass |
---|
763 | |
---|
764 | #-------------------------------------------------------------- |
---|
765 | # Test inundation height again |
---|
766 | #-------------------------------------------------------------- |
---|
767 | q_ref = domain.get_maximum_inundation_elevation() |
---|
768 | q = get_maximum_inundation_elevation('runup_test.sww') |
---|
769 | msg = 'We got %f, should have been %f' % (q, q_ref) |
---|
770 | assert num.allclose(q, q_ref, rtol=1.0/N), msg |
---|
771 | |
---|
772 | q = get_maximum_inundation_elevation('runup_test.sww') |
---|
773 | msg = 'We got %f, should have been %f' % (q, initial_runup_height) |
---|
774 | assert num.allclose(q, initial_runup_height, rtol = 1.0/N), msg |
---|
775 | |
---|
776 | # Test error condition if time interval is out |
---|
777 | try: |
---|
778 | q = get_maximum_inundation_elevation('runup_test.sww', |
---|
779 | time_interval=[2.0, 3.0]) |
---|
780 | except ValueError: |
---|
781 | pass |
---|
782 | else: |
---|
783 | msg = 'should have caught wrong time interval' |
---|
784 | raise Exception, msg |
---|
785 | |
---|
786 | # Check correct time interval |
---|
787 | q, loc = get_maximum_inundation_data('runup_test.sww', |
---|
788 | time_interval=[0.0, 3.0]) |
---|
789 | msg = 'We got %f, should have been %f' % (q, initial_runup_height) |
---|
790 | assert num.allclose(q, initial_runup_height, rtol = 1.0/N), msg |
---|
791 | assert num.allclose(-loc[0]/2, q) # From topography formula |
---|
792 | |
---|
793 | #-------------------------------------------------------------- |
---|
794 | # Update boundary to allow inflow |
---|
795 | #-------------------------------------------------------------- |
---|
796 | domain.set_boundary({'right': Bd}) |
---|
797 | |
---|
798 | #-------------------------------------------------------------- |
---|
799 | # Evolve system through time |
---|
800 | #-------------------------------------------------------------- |
---|
801 | q_max = None |
---|
802 | for t in domain.evolve(yieldstep = 0.1, finaltime = 3.0, |
---|
803 | skip_initial_step = True): |
---|
804 | q = domain.get_maximum_inundation_elevation() |
---|
805 | if q > q_max: |
---|
806 | q_max = q |
---|
807 | |
---|
808 | #-------------------------------------------------------------- |
---|
809 | # Test inundation height again |
---|
810 | #-------------------------------------------------------------- |
---|
811 | indices = domain.get_wet_elements() |
---|
812 | z = domain.get_quantity('elevation').\ |
---|
813 | get_values(location='centroids', indices=indices) |
---|
814 | |
---|
815 | assert num.alltrue(z < final_runup_height) |
---|
816 | |
---|
817 | q = domain.get_maximum_inundation_elevation() |
---|
818 | # First order accuracy |
---|
819 | assert num.allclose(q, final_runup_height, rtol=1.0/N) |
---|
820 | |
---|
821 | q, loc = get_maximum_inundation_data('runup_test.sww', |
---|
822 | time_interval=[3.0, 3.0]) |
---|
823 | msg = 'We got %f, should have been %f' % (q, final_runup_height) |
---|
824 | assert num.allclose(q, final_runup_height, rtol=1.0/N), msg |
---|
825 | assert num.allclose(-loc[0]/2, q) # From topography formula |
---|
826 | |
---|
827 | q = get_maximum_inundation_elevation('runup_test.sww') |
---|
828 | loc = get_maximum_inundation_location('runup_test.sww') |
---|
829 | msg = 'We got %f, should have been %f' % (q, q_max) |
---|
830 | assert num.allclose(q, q_max, rtol=1.0/N), msg |
---|
831 | assert num.allclose(-loc[0]/2, q) # From topography formula |
---|
832 | |
---|
833 | q = get_maximum_inundation_elevation('runup_test.sww', |
---|
834 | time_interval=[0, 3]) |
---|
835 | msg = 'We got %f, should have been %f' % (q, q_max) |
---|
836 | assert num.allclose(q, q_max, rtol=1.0/N), msg |
---|
837 | |
---|
838 | # Check polygon mode |
---|
839 | # Runup region |
---|
840 | polygon = [[0.3, 0.0], [0.9, 0.0], [0.9, 1.0], [0.3, 1.0]] |
---|
841 | q = get_maximum_inundation_elevation('runup_test.sww', |
---|
842 | polygon = polygon, |
---|
843 | time_interval=[0, 3]) |
---|
844 | msg = 'We got %f, should have been %f' % (q, q_max) |
---|
845 | assert num.allclose(q, q_max, rtol=1.0/N), msg |
---|
846 | |
---|
847 | # Offshore region |
---|
848 | polygon = [[0.9, 0.0], [1.0, 0.0], [1.0, 1.0], [0.9, 1.0]] |
---|
849 | q, loc = get_maximum_inundation_data('runup_test.sww', |
---|
850 | polygon = polygon, |
---|
851 | time_interval=[0, 3]) |
---|
852 | msg = 'We got %f, should have been %f' % (q, -0.475) |
---|
853 | assert num.allclose(q, -0.475, rtol=1.0/N), msg |
---|
854 | assert is_inside_polygon(loc, polygon) |
---|
855 | assert num.allclose(-loc[0]/2, q) # From topography formula |
---|
856 | |
---|
857 | # Dry region |
---|
858 | polygon = [[0.0, 0.0], [0.4, 0.0], [0.4, 1.0], [0.0, 1.0]] |
---|
859 | q, loc = get_maximum_inundation_data('runup_test.sww', |
---|
860 | polygon = polygon, |
---|
861 | time_interval=[0, 3]) |
---|
862 | msg = 'We got %s, should have been None' % (q) |
---|
863 | assert q is None, msg |
---|
864 | msg = 'We got %s, should have been None' % (loc) |
---|
865 | assert loc is None, msg |
---|
866 | |
---|
867 | # Check what happens if no time point is within interval |
---|
868 | try: |
---|
869 | q = get_maximum_inundation_elevation('runup_test.sww', |
---|
870 | time_interval=[2.75, 2.75]) |
---|
871 | except AssertionError: |
---|
872 | pass |
---|
873 | else: |
---|
874 | msg = 'Time interval should have raised an exception' |
---|
875 | raise Exception, msg |
---|
876 | |
---|
877 | # Cleanup |
---|
878 | try: |
---|
879 | os.remove(domain.get_name() + '.sww') |
---|
880 | except: |
---|
881 | pass |
---|
882 | #FIXME(Ole): Windows won't allow removal of this |
---|
883 | |
---|
884 | |
---|
885 | |
---|
886 | |
---|
887 | if __name__ == "__main__": |
---|
888 | suite = unittest.makeSuite(Test_sww_Interrogate, 'test') |
---|
889 | runner = unittest.TextTestRunner() #verbosity=2) |
---|
890 | runner.run(suite) |
---|
891 | |
---|