# Contents of /trunk/doc/examples/cookbook/wavesolver2d001.py

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Wed Feb 3 01:39:15 2010 UTC (9 years, 10 months ago) by gross
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```needdirs replaced by mkDir from esys.escript
```
 1 2 ######################################################## 3 # 4 # Copyright (c) 2009-2010 by University of Queensland 5 # Earth Systems Science Computational Center (ESSCC) 6 7 # 8 # Primary Business: Queensland, Australia 9 # Licensed under the Open Software License version 3.0 10 11 # 12 ######################################################## 13 14 __copyright__="""Copyright (c) 2009-2010 by University of Queensland 15 Earth Systems Science Computational Center (ESSCC) 16 http://www.uq.edu.au/esscc 17 Primary Business: Queensland, Australia""" 18 __license__="""Licensed under the Open Software License version 3.0 19 20 __url__= 21 22 # You can shorten the execution time by reducing variable tend from 60 to 0.5 23 24 # Importing all the necessary modules required. 25 from esys.escript import * 26 from esys.finley import Rectangle 27 import sys 28 import os 29 from cblib1 import wavesolver2d 30 31 # Establish a save path. 32 savepath = "data/wavesolver2d001nwtest" 33 mkDir(savepath) 34 35 36 #Geometric and material property related variables. 37 mx = 1000 # model lenght 38 my = 200 # model width 39 ndx = 200 # steps in x direction 40 ndy = 40 # steps in y direction 41 lam=3.462e9 #lames constant 42 mu=3.462e9 #bulk modulus 43 rho=1154. #density 44 # Time related variables. 45 tend=0.5 #end time 46 #calculating )the timestep 47 h=(1./5.)*sqrt(rho/(lam+2*mu))*(mx/ndx) 48 #Check to make sure number of time steps is not too large. 49 print "Time step size= ",h, "Expected number of outputs= ",tend/h 50 51 #uncomment the following lines to give the user a chance to stop 52 #proceeder = raw_input("Is this ok?(y/n)") 53 #Exit if user thinks too many outputs. 54 #if proceeder == "n": 55 # sys.exit() 56 57 U0=0.01 # amplitude of point source 58 # spherical source at middle of bottom face 59 60 xc=[300,200] 61 62 mydomain=Rectangle(l0=mx,l1=my,n0=ndx, n1=ndy) 63 wavesolver2d(mydomain,h,tend,lam,mu,rho,U0,xc,savepath) 64