[5066] | 1 | """Simple water flow example using ANUGA |
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| 2 | |
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| 3 | Water driven up a linear slope and time varying boundary, |
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| 4 | similar to a beach environment |
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| 5 | """ |
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| 6 | |
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| 7 | |
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| 8 | #------------------------------------------------------------------------------ |
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| 9 | # Import necessary modules |
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| 10 | #------------------------------------------------------------------------------ |
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| 11 | |
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| 12 | from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular_cross |
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| 13 | from anuga.shallow_water import Domain |
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| 14 | from anuga.shallow_water import Reflective_boundary |
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| 15 | from anuga.shallow_water import Dirichlet_boundary |
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| 16 | from anuga.shallow_water import Time_boundary |
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| 17 | from anuga.shallow_water import Transmissive_boundary |
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| 18 | from anuga.shallow_water import Transmissive_Momentum_Set_Stage_boundary |
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| 19 | from anuga.shallow_water.data_manager import start_screen_catcher, copy_code_files |
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| 20 | from time import strftime, gmtime |
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| 21 | from os import sep, environ, getenv, getcwd,umask |
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| 22 | from anuga.utilities.polygon import Polygon_function |
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| 23 | from __future__ import division |
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| 24 | #------------------------------------------------------------------------------ |
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| 25 | # Setup computational domain |
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| 26 | #------------------------------------------------------------------------------ |
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| 27 | from anuga.pmesh.mesh_interface import create_mesh_from_regions |
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| 28 | |
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| 29 | name = 'con_wave_900' |
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| 30 | shelf = [300000] |
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| 31 | slope = [50000, 150000] |
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| 32 | wave = [0.5] #1 returns leading depression N-wave |
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| 33 | #-1 returns leading crest N-wave |
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| 34 | N = len (shelf) |
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| 35 | for i in range(N): |
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| 36 | M = len (slope) |
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| 37 | for k in range (M): |
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| 38 | B = len(wave) |
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| 39 | for l in range(B): |
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| 40 | length = (shelf[i]+slope[k]) |
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| 41 | width = 400. |
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| 42 | A = 1 |
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| 43 | T = 2700 |
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| 44 | umask(002) |
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| 45 | time = strftime('%Y%m%d_%H%M%S',gmtime()) |
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| 46 | ## output_dir = 'C:'+sep+'anuga_data'+sep+str(name)+'_'+str(wave[l])+'_'+str(shelf[i])+'_'+str(slope[k])+sep |
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| 47 | output_dir = sep+'d'+sep+'sim'+sep+'1'+sep+'mpittard'+sep+'idealised_bathymetry_study'+sep+'wave_type_tester'+sep+str(name)+'_'+str(wave[l])+'_'+str(shelf[i])+'_'+str(slope[k])+sep |
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| 48 | |
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| 49 | sww_file = str(name) |
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| 50 | copy_code_files(output_dir,__file__,__file__) |
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| 51 | start_screen_catcher(output_dir) |
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| 52 | boundary_polygon = [[0,0],[length,0],[length,width],[0,width]] |
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| 53 | |
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| 54 | meshname = str(name)+'.msh' |
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| 55 | create_mesh_from_regions(boundary_polygon, |
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| 56 | boundary_tags={'bottom': [0], |
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| 57 | 'right': [1], |
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| 58 | 'top': [2], |
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| 59 | 'left': [3]}, |
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| 60 | maximum_triangle_area=5000, |
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| 61 | filename=meshname, |
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| 62 | use_cache=False, |
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| 63 | verbose=False) |
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| 64 | |
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| 65 | domain = Domain(meshname, use_cache=True, verbose=True) |
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| 66 | |
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| 67 | print 'Number of triangles = ', len(domain) |
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| 68 | print 'The extent is ', domain.get_extent() |
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| 69 | print domain.statistics() |
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| 70 | |
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| 71 | domain.set_quantities_to_be_stored(['stage', 'xmomentum', 'ymomentum']) |
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| 72 | domain.set_minimum_storable_height(0.01) |
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| 73 | domain.set_default_order(2) |
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| 74 | domain.set_name(sww_file)# Output name |
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| 75 | domain.set_datadir(output_dir) |
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| 76 | |
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| 77 | |
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| 78 | #------------------------------------------------------------------------------ |
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| 79 | # Setup initial conditions |
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| 80 | #------------------------------------------------------------------------------ |
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| 81 | |
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| 82 | def topography(x,y): |
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| 83 | """Complex topography defined by a function of vectors x and y |
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| 84 | """ |
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| 85 | o = 2500/(slope[k]*slope[k]/4) |
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| 86 | print str(2500/(slope[k]*slope[k]/4)) |
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| 87 | |
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| 88 | z = o*(x-(shelf[i]+slope[k]))*(x-(shelf[i]+slope[k]))-5125-10 |
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| 89 | S = len (x) |
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| 90 | for j in range(S): |
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| 91 | |
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| 92 | if x[j] < shelf[i]: |
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| 93 | z[j] = -125/(shelf[i]*shelf[i])*x[j]*x[j]-10 |
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| 94 | |
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| 95 | elif shelf[i] <= x[j] < (shelf[i]+slope[k]*0.5) : |
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| 96 | z[j] = (-o)*(x[j]-shelf[i])*(x[j]-shelf[i])-125-10 |
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| 97 | |
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| 98 | return z |
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| 99 | |
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| 100 | |
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| 101 | |
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| 102 | domain.set_quantity('elevation', topography) # Use function for elevation |
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| 103 | domain.set_quantity('friction', 0) # Constant friction |
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| 104 | domain.set_quantity('stage', 0) # Constant negative initial stage |
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| 105 | domain.tight_slope_limiters = 1 |
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| 106 | domain.beta_h = 0 |
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| 107 | |
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| 108 | #------------------------------------------------------------------------------ |
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| 109 | # Setup boundary conditions |
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| 110 | #------------------------------------------------------------------------------ |
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| 111 | |
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| 112 | from math import sin, pi, exp, cos, sqrt, cosh |
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| 113 | Br = Reflective_boundary(domain) # Solid reflective wall |
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| 114 | Bt = Transmissive_boundary(domain) # Continue all values on boundary |
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| 115 | Bd = Dirichlet_boundary([0.,0.,0.]) # Constant boundary values |
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| 116 | |
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| 117 | def waveform(t): |
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| 118 | return wave[l]*1.258*sin(2*pi*t/900)*exp(-t/(900)) |
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| 119 | Bf = Transmissive_Momentum_Set_Stage_boundary(domain, waveform) |
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| 120 | # Associate boundary tags with boundary objects |
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| 121 | domain.set_boundary({'left': Bd, 'right': Bf, 'top': Br, 'bottom': Br}) |
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| 122 | |
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| 123 | |
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| 124 | #------------------------------------------------------------------------------ |
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| 125 | # Evolve system through time |
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| 126 | #------------------------------------------------------------------------------ |
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| 127 | |
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| 128 | |
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| 129 | for t in domain.evolve(yieldstep = 45, finaltime = -1000+((length/50000)+1)*600+((shelf[i]/25000+1)*1000)): |
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| 130 | domain.write_time() |
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| 131 | for t in domain.evolve(yieldstep = 45, finaltime = 2700+((length/50000)+1)*600+((shelf[i]/25000+1)*1000), |
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| 132 | skip_initial_step = True): |
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| 133 | domain.write_time() |
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| 134 | for t in domain.evolve(yieldstep = 120, finaltime = (length/25)+2700+((length/50000)+1)*600+((shelf[i]/25000+1)*1000), |
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| 135 | skip_initial_step = True): |
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| 136 | domain.write_time() |
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| 137 | |
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| 138 | |
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| 139 | """ |
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| 140 | Generate time series of nominated "gauges" |
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| 141 | Note, this script will only work if pylab is installed on the platform |
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| 142 | |
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| 143 | Inputs: |
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| 144 | |
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| 145 | production dirs: dictionary of production directories with a |
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| 146 | association to that simulation run, eg high tide, |
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| 147 | magnitude, etc. |
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| 148 | |
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| 149 | Outputs: |
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| 150 | |
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| 151 | * figures stored in same directory as sww file |
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| 152 | * time series data stored in csv files in same directory as sww file |
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| 153 | * elevation at nominated gauges (elev_output) |
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| 154 | """ |
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| 155 | |
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| 156 | from os import getcwd, sep, altsep, mkdir, access, F_OK, remove |
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| 157 | from anuga.abstract_2d_finite_volumes.util import sww2timeseries |
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| 158 | |
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| 159 | # nominate directory location of sww file with associated attribute |
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| 160 | production_dirs = {output_dir: str(name)} |
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| 161 | |
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| 162 | # Generate figures |
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| 163 | swwfiles = {} |
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| 164 | for label_id in production_dirs.keys(): |
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| 165 | file_loc = label_id |
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| 166 | swwfile = file_loc + str(name)+'.sww' |
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| 167 | swwfiles[swwfile] = label_id |
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| 168 | print 'hello', swwfile |
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| 169 | texname, elev_output = sww2timeseries(swwfiles, |
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| 170 | sep+'d'+sep+'sim'+sep+'1'+sep+'mpittard'+sep+'anuga'+sep+'anuga_work'+sep+'development'+sep+'idealised_bathymetry_study'+sep+'continental_shelves'+sep+'gauges.csv', |
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| 171 | production_dirs, |
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| 172 | report = False, |
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| 173 | reportname = '', |
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| 174 | plot_quantity = ['stage', 'speed'], |
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| 175 | generate_fig = False, |
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| 176 | surface = False, |
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| 177 | time_min = None, |
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| 178 | time_max = None, |
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| 179 | #time_unit = 'secs', |
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| 180 | title_on = True, |
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| 181 | verbose = True) |
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| 182 | ## print (output_dir+sep+str(name)+'.sww') |
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| 183 | ## remove(output_dir+sep+str(name)+'.sww') |
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| 184 | |
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| 185 | |
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| 186 | |
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