[2622] | 1 | """ |
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| 2 | Main meribula script using new interface |
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| 3 | """ |
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| 4 | |
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| 5 | #------------------------------- |
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| 6 | # Module imports |
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| 7 | #------------------------------- |
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| 8 | import sys, os |
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| 9 | from pyvolution.shallow_water import Domain, Reflective_boundary,\ |
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| 10 | File_boundary, Transmissive_Momentum_Set_Stage_boundary,\ |
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| 11 | Wind_stress |
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| 12 | from pyvolution.util import file_function |
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| 13 | from pyvolution.mesh_factory import rectangular_cross |
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| 14 | from pyvolution.pmesh2domain import pmesh_to_domain_instance |
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| 15 | from utilities.polygon import Polygon_function, read_polygon |
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| 16 | from Numeric import array, zeros, Float, allclose |
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| 17 | import project |
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| 18 | from caching import cache |
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| 19 | |
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| 20 | |
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| 21 | |
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| 22 | |
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| 23 | #------------------------------- |
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| 24 | # Domain |
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| 25 | #------------------------------- |
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| 26 | print 'Creating domain from', project.mesh_filename |
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| 27 | |
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| 28 | domain = cache(pmesh_to_domain_instance, |
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| 29 | (project.mesh_filename, Domain), |
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| 30 | dependencies = [project.mesh_filename]) |
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| 31 | |
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| 32 | domain.check_integrity() |
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| 33 | print 'Number of triangles = ', len(domain) |
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| 34 | print 'The extent is ', domain.get_extent() |
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| 35 | |
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| 36 | |
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| 37 | |
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| 38 | #------------------------------- |
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| 39 | # Initial Conditions |
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| 40 | #------------------------------- |
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| 41 | print 'Initial values' |
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| 42 | |
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| 43 | domain.set_quantity('elevation', |
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| 44 | filename = project.bathymetry_filename[:-4] + '.xya', |
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| 45 | alpha = 10.0, |
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| 46 | verbose = True, |
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| 47 | use_cache = True) |
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| 48 | |
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| 49 | domain.set_quantity('stage', 0.0) |
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| 50 | |
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| 51 | #------------------------------- |
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| 52 | # Setup Friction (due to weeds) |
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| 53 | #------------------------------- |
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| 54 | def image_points_to_northing_eastings(points): |
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| 55 | #print points |
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| 56 | n = len(points) |
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| 57 | #print n |
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| 58 | z = [] |
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| 59 | for i in range(n): |
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| 60 | #print i |
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| 61 | z.append([0,0]) |
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| 62 | z[i][0] = 755471.4 + (points[i][0] + 3250.)/1.125 |
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| 63 | z[i][1] = 5910260.0 + (points[i][1] + 1337.)/1.12 |
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| 64 | #print z |
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| 65 | return z |
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| 66 | |
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| 67 | #------------------------------------------ |
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| 68 | # Set friction for different bed types |
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| 69 | #------------------------------------------ |
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| 70 | # Sand bed |
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| 71 | w = 0.01 |
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| 72 | # Saltmarsh |
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| 73 | g = 0.060 |
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| 74 | # Paddle weed |
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| 75 | y = 0.025 |
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| 76 | # Eel grass |
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| 77 | r = 0.035 |
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| 78 | # Mangroves |
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| 79 | c = 0.065 |
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| 80 | # Strap weed |
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| 81 | b = 0.040 |
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| 82 | |
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| 83 | #----------------------------------------------- |
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| 84 | # Set the whole region to a constant value |
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| 85 | #----------------------------------------------- |
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| 86 | weed_zoneall = image_points_to_northing_eastings([[-2269,-1337],[1894,-1339],[1894,2946],[-2669,2946]]) |
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| 87 | |
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| 88 | #--------------------------------------- |
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| 89 | # Read friction polygon boundaries |
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| 90 | #--------------------------------------- |
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| 91 | weed_zone47 = image_points_to_northing_eastings(read_polygon('weed_zone.047',split=' ')) |
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| 92 | weed_zone2 = image_points_to_northing_eastings(read_polygon('weed_zone.002',split=' ')) |
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| 93 | weed_zone12 = image_points_to_northing_eastings(read_polygon('weed_zone.012',split=' ')) |
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| 94 | weed_zone35 = image_points_to_northing_eastings(read_polygon('weed_zone.035',split=' ')) |
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| 95 | weed_zone8 = image_points_to_northing_eastings(read_polygon('weed_zone.008',split=' ')) |
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| 96 | weed_zone10 = image_points_to_northing_eastings(read_polygon('weed_zone.010',split=' ')) |
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| 97 | weed_zone13 = image_points_to_northing_eastings(read_polygon('weed_zone.013',split=' ')) |
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| 98 | weed_zone15 = image_points_to_northing_eastings(read_polygon('weed_zone.015',split=' ')) |
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| 99 | weed_zone19 = image_points_to_northing_eastings(read_polygon('weed_zone.019',split=' ')) |
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| 100 | weed_zone18 = image_points_to_northing_eastings(read_polygon('weed_zone.018',split=' ')) |
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| 101 | weed_zone24 = image_points_to_northing_eastings(read_polygon('weed_zone.024',split=' ')) |
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| 102 | weed_zone26 = image_points_to_northing_eastings(read_polygon('weed_zone.026',split=' ')) |
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| 103 | weed_zone27 = image_points_to_northing_eastings(read_polygon('weed_zone.027',split=' ')) |
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| 104 | weed_zone32 = image_points_to_northing_eastings(read_polygon('weed_zone.032',split=' ')) |
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| 105 | weed_zone31 = image_points_to_northing_eastings(read_polygon('weed_zone.031',split=' ')) |
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| 106 | weed_zone33 = image_points_to_northing_eastings(read_polygon('weed_zone.033',split=' ')) |
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| 107 | weed_zone34 = image_points_to_northing_eastings(read_polygon('weed_zone.034',split=' ')) |
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| 108 | weed_zone36 = image_points_to_northing_eastings(read_polygon('weed_zone.036',split=' ')) |
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| 109 | weed_zone37 = image_points_to_northing_eastings(read_polygon('weed_zone.037',split=' ')) |
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| 110 | weed_zone38 = image_points_to_northing_eastings(read_polygon('weed_zone.038',split=' ')) |
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| 111 | weed_zone40 = image_points_to_northing_eastings(read_polygon('weed_zone.040',split=' ')) |
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| 112 | weed_zone41 = image_points_to_northing_eastings(read_polygon('weed_zone.041',split=' ')) |
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| 113 | weed_zone42 = image_points_to_northing_eastings(read_polygon('weed_zone.042',split=' ')) |
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| 114 | weed_zone43 = image_points_to_northing_eastings(read_polygon('weed_zone.043',split=' ')) |
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| 115 | weed_zone44 = image_points_to_northing_eastings(read_polygon('weed_zone.044',split=' ')) |
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| 116 | weed_zone45 = image_points_to_northing_eastings(read_polygon('weed_zone.045',split=' ')) |
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| 117 | weed_zone46 = image_points_to_northing_eastings(read_polygon('weed_zone.046',split=' ')) |
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| 118 | weed_zone1 = image_points_to_northing_eastings(read_polygon('weed_zone.001',split=' ')) |
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| 119 | weed_zone20 = image_points_to_northing_eastings(read_polygon('weed_zone.020',split=' ')) |
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| 120 | weed_zone21 = image_points_to_northing_eastings(read_polygon('weed_zone.021',split=' ')) |
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| 121 | weed_zone22 = image_points_to_northing_eastings(read_polygon('weed_zone.022',split=' ')) |
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| 122 | weed_zone23 = image_points_to_northing_eastings(read_polygon('weed_zone.023',split=' ')) |
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| 123 | weed_zone25 = image_points_to_northing_eastings(read_polygon('weed_zone.025',split=' ')) |
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| 124 | weed_zone16 = image_points_to_northing_eastings(read_polygon('weed_zone.016',split=' ')) |
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| 125 | weed_zone17 = image_points_to_northing_eastings(read_polygon('weed_zone.017',split=' ')) |
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| 126 | weed_zone3 = image_points_to_northing_eastings(read_polygon('weed_zone.003',split=' ')) |
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| 127 | weed_zone6 = image_points_to_northing_eastings(read_polygon('weed_zone.006',split=' ')) |
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| 128 | weed_zone7 = image_points_to_northing_eastings(read_polygon('weed_zone.007',split=' ')) |
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| 129 | weed_zone9 = image_points_to_northing_eastings(read_polygon('weed_zone.009',split=' ')) |
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| 130 | weed_zone4 = image_points_to_northing_eastings(read_polygon('weed_zone.004',split=' ')) |
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| 131 | weed_zone39 = image_points_to_northing_eastings(read_polygon('weed_zone.039',split=' ')) |
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| 132 | weed_zone28 = image_points_to_northing_eastings(read_polygon('weed_zone.028',split=' ')) |
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| 133 | weed_zone29 = image_points_to_northing_eastings(read_polygon('weed_zone.029',split=' ')) |
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| 134 | weed_zone30 = image_points_to_northing_eastings(read_polygon('weed_zone.030',split=' ')) |
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| 135 | weed_zone5 = image_points_to_northing_eastings(read_polygon('weed_zone.005',split=' ')) |
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| 136 | weed_zone11 = image_points_to_northing_eastings(read_polygon('weed_zone.011',split=' ')) |
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| 137 | weed_zone14 = image_points_to_northing_eastings(read_polygon('weed_zone.014',split=' ')) |
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| 138 | |
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| 139 | domain.set_quantity('friction',Polygon_function([ \ |
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| 140 | (weed_zone15, g), (weed_zone19, c), (weed_zone18, g), (weed_zone24, c), \ |
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| 141 | (weed_zone26, r), (weed_zone27, g), (weed_zone32, c), (weed_zone31, g), \ |
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| 142 | (weed_zone33, r), (weed_zone34, g), (weed_zone36, r), (weed_zone37, g), \ |
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| 143 | (weed_zone38, g), (weed_zone40, r), (weed_zone41, b), (weed_zone42, r), \ |
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| 144 | (weed_zone43, r), (weed_zone44, r), (weed_zone45, b), (weed_zone46, r), \ |
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| 145 | (weed_zone1, w), (weed_zone20, w), (weed_zone21, w), (weed_zone22, w), \ |
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| 146 | (weed_zone23, w), (weed_zone25, w), (weed_zone16, w), (weed_zone17, w), \ |
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| 147 | (weed_zone3, w), (weed_zone6, w), (weed_zone7, w), (weed_zone9, w), \ |
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| 148 | (weed_zone4, b), (weed_zone39, b), (weed_zone28, r), (weed_zone29, b), \ |
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| 149 | (weed_zone30, b), (weed_zone5, b), (weed_zone11, b), (weed_zone14, b) ])) |
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| 150 | |
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| 151 | |
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| 152 | #--------------------------------------------- |
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| 153 | # Wind field |
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| 154 | # Format is time [DD/MM/YY hh:mm:ss], speed [m/s] direction (degrees) |
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| 155 | # This method is linearly interpolating the bearings and so will lead to |
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| 156 | # close to bearing = 0 and 360! |
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| 157 | #--------------------------------------------- |
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[2648] | 158 | #filename = project.original_wind_filename[:-4]+'.tms' |
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| 159 | #print 'Wind field from ',filename |
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| 160 | #wind = file_function(filename, domain=domain, quantities=['speed','bearing']) |
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| 161 | #domain.forcing_terms.append(Wind_stress(wind)) |
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[2622] | 162 | |
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| 163 | |
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| 164 | |
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| 165 | #------------------------------- |
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| 166 | # Boundary conditions |
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| 167 | #------------------------------- |
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| 168 | print 'Boundaries' |
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| 169 | |
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| 170 | # Tidal cycle recorded at Eden as open |
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| 171 | print 'Open sea boundary condition from ',project.boundary_filename |
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| 172 | from pyvolution.util import file_function |
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| 173 | tide_function = file_function(project.boundary_filename[:-4] + '.tms', domain, |
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| 174 | verbose = True) |
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| 175 | Bts = Transmissive_Momentum_Set_Stage_boundary(domain, tide_function) |
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| 176 | |
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| 177 | # All other boundaries are reflective |
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| 178 | Br = Reflective_boundary(domain) |
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| 179 | |
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| 180 | domain.set_boundary({'exterior': Br, 'open': Bts}) |
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| 181 | |
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| 182 | #------------------------------- |
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| 183 | # Setup domain runtime parameters |
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| 184 | #------------------------------- |
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| 185 | domain.visualise = False |
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| 186 | domain.visualise_color_stage = True |
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| 187 | |
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| 188 | base = os.path.basename(sys.argv[0]) |
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| 189 | domain.filename, _ = os.path.splitext(base) |
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| 190 | domain.default_order = 2 |
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| 191 | domain.store = True #Store for visualisation purposes |
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| 192 | |
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| 193 | |
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| 194 | |
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| 195 | #------------------------------- |
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| 196 | # Evolve |
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| 197 | #------------------------------- |
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| 198 | import time |
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| 199 | t0 = time.time() |
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| 200 | yieldstep = 10 |
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| 201 | finaltime = 60 |
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| 202 | |
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| 203 | |
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| 204 | for t in domain.evolve(yieldstep = yieldstep, finaltime = finaltime): |
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| 205 | domain.write_time() |
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| 206 | print wind(t) |
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| 207 | |
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| 208 | print 'That took %.2f seconds' %(time.time()-t0) |
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