1 | """Script for running a tsunami inundation scenario for Sydney, NSW, Australia. |
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2 | |
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3 | Source data such as elevation and boundary data is assumed to be available in |
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4 | directories specified by project.py |
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5 | The output sww file is stored in project.outputdir |
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6 | |
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7 | The scenario is defined by a triangular mesh created from project.polygon, |
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8 | the elevation data and boundary data obtained from a tsunami simulation done with MOST. |
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9 | |
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10 | Ole Nielsen, GA - 2005 and Jane Sexton, GA - 2006 |
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11 | """ |
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12 | |
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13 | tide = 0 #Australian Height Datum (mean sea level) |
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14 | |
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15 | import os |
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16 | import time |
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17 | |
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18 | |
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19 | from anuga.pyvolution.shallow_water import Domain, Reflective_boundary, File_boundary,\ |
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20 | Dirichlet_boundary, Time_boundary, Transmissive_boundary |
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21 | from anuga.pyvolution.data_manager import convert_dem_from_ascii2netcdf,\ |
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22 | dem2pts |
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23 | from anuga.pyvolution.pmesh2domain import pmesh_to_domain_instance |
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24 | from caching import cache |
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25 | import project |
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26 | from math import pi, sin |
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27 | |
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28 | #Data preparation |
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29 | #Convert ASC 2 DEM 2 PTS using source data and store result in source data |
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30 | demname = project.demname |
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31 | meshname = project.meshname+'.msh' |
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32 | |
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33 | cache(convert_dem_from_ascii2netcdf, demname, {'verbose': True}, |
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34 | dependencies = [demname + '.asc'], |
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35 | verbose = True) |
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36 | #evaluate = True) |
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37 | |
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38 | cache(dem2pts, demname, {'verbose': True}, |
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39 | dependencies = [demname + '.dem'], |
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40 | verbose = True) |
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41 | |
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42 | #this allows the user to switch between different clipping polygons |
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43 | print 'Which total zone are you interested in?' |
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44 | mytest = int(raw_input('0 = all, 1 = harbour and 2 = botany bay ')) |
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45 | |
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46 | #Create Triangular Mesh |
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47 | from anuga.pmesh.create_mesh import create_mesh_from_regions |
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48 | |
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49 | if mytest == 0: |
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50 | # for whole region |
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51 | south = project.south |
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52 | north = project.north |
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53 | west = project.west |
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54 | east = project.east |
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55 | |
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56 | interior_regions = [[project.harbour_polygon, 25000], |
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57 | [project.botanybay_polygon, 25000]] # maximal area of per triangle |
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58 | |
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59 | m = cache(create_mesh_from_regions, |
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60 | project.polygonall, |
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61 | {'boundary_tags': {'bottom': [0], 'top': [2], |
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62 | 'right': [1], 'left': [3]}, |
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63 | 'resolution': 100000, |
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64 | 'filename': meshname, |
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65 | 'interior_regions': interior_regions}, |
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66 | evaluate=True, |
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67 | verbose = True) |
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68 | #import sys; sys.exit() |
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69 | |
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70 | if mytest == 1: |
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71 | # for harbour region |
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72 | south = project.hsouth |
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73 | north = project.hnorth |
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74 | west = project.hwest |
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75 | east = project.heast |
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76 | |
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77 | #interior_regions = [[project.harbour_polygon, 25000]] # maximal area of per triangle |
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78 | |
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79 | m = cache(create_mesh_from_regions, |
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80 | project.polygon_h, |
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81 | {'boundary_tags': {'bottom': [0], 'top': [2], |
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82 | 'right': [1], 'left': [3]}, |
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83 | 'resolution': 50000, |
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84 | 'filename': meshname}, |
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85 | # 'interior_regions': interior_regions}, |
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86 | evaluate=True, |
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87 | verbose = True) |
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88 | |
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89 | if mytest == 2: |
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90 | # for botany bay region |
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91 | south = project.bsouth |
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92 | north = project.bnorth |
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93 | west = project.bwest |
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94 | east = project.beast |
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95 | |
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96 | #interior_regions = [[project.botanybay_polygon, 25000]] # maximal area of per triangle |
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97 | |
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98 | m = cache(create_mesh_from_regions, |
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99 | project.polygon_bb, |
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100 | {'boundary_tags': {'bottom': [0], 'top': [2], |
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101 | 'right': [1], 'left': [3]}, |
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102 | 'resolution': 50000, |
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103 | 'filename': meshname}, |
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104 | # 'interior_regions': interior_regions}, |
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105 | evaluate=True, |
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106 | verbose = True) |
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107 | |
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108 | #Setup domain |
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109 | |
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110 | domain = cache(pmesh_to_domain_instance, (meshname, Domain), |
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111 | dependencies = [meshname], |
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112 | verbose = True) |
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113 | |
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114 | |
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115 | domain.set_name(project.basename) |
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116 | domain.set_datadir(project.outputdir) |
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117 | domain.store = True |
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118 | |
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119 | #domain.quantities_to_be_stored = ['stage', 'xmomentum', 'ymomentum'] |
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120 | domain.quantities_to_be_stored = ['stage'] |
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121 | |
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122 | print 'Number of triangles = ', len(domain) |
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123 | print 'The extent is ', domain.get_extent() |
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124 | |
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125 | |
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126 | |
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127 | #Setup Initial Conditions |
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128 | domain.set_quantity('friction', 0) |
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129 | domain.set_quantity('stage', tide) |
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130 | domain.set_quantity('elevation', |
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131 | filename = demname + '.pts', |
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132 | use_cache = True, |
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133 | verbose = True) |
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134 | |
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135 | |
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136 | |
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137 | #Setup Boundary Conditions |
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138 | print domain.get_boundary_tags() |
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139 | |
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140 | Br = Reflective_boundary(domain) |
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141 | Bt = Transmissive_boundary(domain) |
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142 | Bd = Dirichlet_boundary([0,0,0]) |
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143 | # 10 min square wave starting at 1 min, 6m high |
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144 | Bw = Time_boundary(domain=domain, |
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145 | f=lambda t: [(60<t<660)*6, 0, 0]) |
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146 | |
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147 | |
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148 | domain.set_boundary( {'top': Br, 'bottom': Br, 'right': Bw, 'left': Br} ) |
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149 | |
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150 | |
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151 | #Evolve |
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152 | import time |
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153 | t0 = time.time() |
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154 | |
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155 | for t in domain.evolve(yieldstep = 1, finaltime = 3600): |
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156 | domain.write_time() |
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157 | domain.write_boundary_statistics(tags = 'right') #quantities = 'stage') |
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158 | |
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159 | print 'That took %.2f seconds' %(time.time()-t0) |
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