# source:anuga_validation/okushiri_2005/run_okushiri.py@3716

Last change on this file since 3716 was 3716, checked in by ole, 17 years ago

Ongoing work on run_okushiri and karratha_2006

File size: 3.2 KB
Line
1"""Validation of the AnuGA implementation of the shallow water wave equation.
2
3This script sets up LWRU2 benchmark with initial condition stated
4
6
7http://www.cee.cornell.edu/longwave/index.cfm?page=benchmark&problem=2
8
9Depth at western boundary is d = 13.5 cm
10"""
11
12# Module imports
13from Numeric import array, zeros, Float, allclose
14
15from anuga.shallow_water import Domain
16from anuga.shallow_water import Reflective_boundary
17from anuga.shallow_water import Transmissive_Momentum_Set_Stage_boundary
18from anuga.abstract_2d_finite_volumes.util import file_function
19
20import project
21
22
23#-------------------------
24# Create Domain
25#-------------------------
26
27use_variable_mesh = True #Use large variable mesh generated by create_mesh.py
28#use_variable_mesh = False #Use small structured mesh for speed
29
30if use_variable_mesh is True:
31    print 'Creating domain from', project.mesh_filename
32
33    domain = Domain(project.mesh_filename, use_cache=True, verbose=True)
34else:
35    print 'Creating regular from regular mesh'
36    N = 150
37    points, vertices, boundary = rectangular_cross(N, N/5*3,
38                                                   len1=5.448, len2=3.402)
39    domain = Domain(points, vertices, boundary)
40
41domain.set_name('okushiri_old_limiters')
42domain.set_default_order(2)
43domain.set_minimum_storable_height(0.001)
44
45# Set old (pre Sep 2006) defaults for limiters
46domain.beta_w      = 0.9
47domain.beta_w_dry  = 0.9
48domain.beta_uh     = 0.9
49domain.beta_uh_dry = 0.9
50domain.beta_vh     = 0.9
51domain.beta_vh_dry = 0.9
52
53domain.check_integrity()
54print domain.statistics()
55
56
57#-------------------------
58# Initial Conditions
59#-------------------------
60domain.set_quantity('friction', 0.0)
61domain.set_quantity('stage', 0.0)
62domain.set_quantity('elevation',
63                    filename=project.bathymetry_filename[:-4] + '.pts',
64                    alpha=0.02,
65                    verbose=True,
66                    use_cache=True)
67
68#-------------------------
69# Boundary Conditions
70#-------------------------
71Br = Reflective_boundary(domain)
72
73function = file_function(project.boundary_filename[:-4] + '.tms',
74                         domain,
75                         verbose=True)
76
77Bts = Transmissive_Momentum_Set_Stage_boundary(domain, function)
78
79if use_variable_mesh is True:
80    domain.set_boundary({'wave': Bts, 'wall': Br})
81else:
82    domain.set_boundary({'left': Bts, 'right': Br, 'bottom': Br, 'top': Br})
83
84
85#-------------------------
86# Evolve through time
87#-------------------------
88import time
89t0 = time.time()
90
91w_max = 0
92for t in domain.evolve(yieldstep = 0.05, finaltime = 22.5):
93    domain.write_time()
94
95    w = domain.get_maximum_inundation_elevation()
96    x, y = domain.get_maximum_inundation_location()
97    print '  Coastline elevation = %.2f at (x,y)=(%.2f, %.2f)' %(w, x, y)
98    print
99
100    if w > w_max:
101        w_max = w
102        x_max = x
103        y_max = y
104
105
106print '**********************************************'
107print 'Max coastline elevation = %.2f at (%.2f, %.2f)' %(w_max, x_max, y_max)
108print '**********************************************'
109
110
111
112print 'That took %.2f seconds' %(time.time()-t0)
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