source: anuga_validation/okushiri_2005/run_okushiri.py @ 5424

Last change on this file since 5424 was 5424, checked in by ole, 16 years ago

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[2229]1"""Validation of the AnuGA implementation of the shallow water wave equation.
2
[3845]3This script sets up Okushiri Island benchmark as published at the
[2229]4
[3845]5THE THIRD INTERNATIONAL WORKSHOP ON LONG-WAVE RUNUP MODELS
6June 17-18 2004
7Wrigley Marine Science Center
8Catalina Island, California
9http://www.cee.cornell.edu/longwave/
[2229]10
[3845]11
12The validation data was downloaded and made available in this directory
13for convenience but the original data is available at
[2229]14http://www.cee.cornell.edu/longwave/index.cfm?page=benchmark&problem=2
[3845]15where a detailed description of the problem is also available.
[2229]16
[3845]17
18Run create_okushiri.py to process the boundary condition and build a the
19mesh before running this script.
20
[2229]21"""
22
[3647]23# Module imports
24from anuga.shallow_water import Domain
25from anuga.shallow_water import Reflective_boundary
26from anuga.shallow_water import Transmissive_Momentum_Set_Stage_boundary
27from anuga.abstract_2d_finite_volumes.util import file_function
[2229]28
29import project
30
31
[3647]32#-------------------------
[3845]33# Create Domain from mesh
[3647]34#-------------------------
[3845]35domain = Domain(project.mesh_filename, use_cache=True, verbose=True)
[3859]36print domain.statistics()
[2229]37
[3883]38
[3845]39#-------------------------
40# Initial Conditions
41#-------------------------
42domain.set_quantity('friction', 0.0)
43domain.set_quantity('stage', 0.0)
44domain.set_quantity('elevation',
[3850]45                    filename=project.bathymetry_filename,
46                    alpha=0.02,                   
47                    verbose=True,
48                    use_cache=True)
[2229]49
[3883]50
[3845]51#-------------------------
[3883]52# Set simulation parameters
53#-------------------------
[3850]54domain.set_name(project.output_filename)  # Name of output sww file
55domain.set_default_order(2)               # Apply second order scheme
[3878]56domain.set_all_limiters(0.9)              # Max second order scheme (old lim)
[5231]57domain.set_minimum_storable_height(0.001) # Don't store h < 0.001m
[5424]58domain.tight_slope_limiters = True
[4257]59domain.beta_h = 0.0
[3716]60
[4260]61#Timings on AMD64-242 (beta_h=0)
[4631]62#  tight_slope_limiters = 0:
[4260]63#    3035s - 3110s
[4631]64#  tight_slope_limiters = 1:
[4260]65#    3000s - 3008s
66#
67# beta_h>0: In the order of 3200s
68
[3647]69#-------------------------
[2229]70# Boundary Conditions
[3647]71#-------------------------
[2229]72
[3845]73# Create boundary function from timeseries provided in file
[3850]74function = file_function(project.boundary_filename,
[3845]75                         domain, verbose=True)
[3647]76
[3845]77# Create and assign boundary objects
[2229]78Bts = Transmissive_Momentum_Set_Stage_boundary(domain, function)
[3845]79Br = Reflective_boundary(domain)
80domain.set_boundary({'wave': Bts, 'wall': Br})
[2229]81
82
[4836]83# Select triangle containing ch5 for diagnostic output
84# around known gauge
85triangle_id = domain.get_triangle_containing_point([4.521, 1.196])
86# This should get triangle id 32833 with centroid (4.5244, 1.1972)
87
88
[3647]89#-------------------------
90# Evolve through time
91#-------------------------
[2229]92import time
93t0 = time.time()
94
[5083]95for t in domain.evolve(yieldstep = 0.05, finaltime = 22.5):
[5082]96    print domain.timestepping_statistics(track_speeds=False,
[4836]97                                         triangle_id=triangle_id)
[2229]98
99print 'That took %.2f seconds' %(time.time()-t0)
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