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######################################################## |
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# |
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# Copyright (c) 2009 by University of Queensland |
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# Earth Systems Science Computational Center (ESSCC) |
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# http://www.uq.edu.au/esscc |
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# |
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# Primary Business: Queensland, Australia |
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# Licensed under the Open Software License version 3.0 |
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# http://www.opensource.org/licenses/osl-3.0.php |
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# |
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######################################################## |
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__copyright__="""Copyright (c) 2009 by University of Queensland |
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Earth Systems Science Computational Center (ESSCC) |
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http://www.uq.edu.au/esscc |
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Primary Business: Queensland, Australia""" |
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__license__="""Licensed under the Open Software License version 3.0 |
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http://www.opensource.org/licenses/osl-3.0.php""" |
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__url__="https://launchpad.net/escript-finley" |
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|
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""" |
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Author: Antony Hallam antony.hallam@uqconnect.edu.au |
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""" |
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|
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############################################################FILE HEADER |
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# example10a.py |
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# Model of gravitational Potential. |
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#######################################################EXTERNAL MODULES |
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# To solve the problem it is necessary to import the modules we require. |
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from esys.escript import * # This imports everything from the escript library |
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from esys.escript.unitsSI import * |
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from esys.escript.linearPDEs import LinearPDE # This defines LinearPDE as LinearPDE |
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from esys.finley import ReadMesh |
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from esys.weipa import saveVTK |
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import os, sys #This package is necessary to handle saving our data. |
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########################################################MPI WORLD CHECK |
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if getMPISizeWorld() > 1: |
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import sys |
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print "This example will not run in an MPI world." |
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sys.exit(0) |
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|
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#################################################ESTABLISHING VARIABLES |
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G=6.67300*10E-11 |
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|
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################################################ESTABLISHING PARAMETERS |
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#the folder to put our outputs in, leave blank "" for script path |
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save_path= os.path.join("data","example10") |
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#ensure the dir exists |
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mkDir(save_path) |
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|
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####################################################DOMAIN CONSTRUCTION |
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domain=ReadMesh(os.path.join(save_path,'fault.fly')) # create the domain |
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x=Solution(domain).getX() |
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rho=Scalar(0,Function(domain)) |
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rho.setTaggedValue("xx",500.) |
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rho.setTaggedValue("limestone",0.0) |
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rho.setTaggedValue("fault",1200.) |
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|
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kro=kronecker(domain) |
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q=whereZero(x[2])#-sup(x[2])) |
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###############################################ESCRIPT PDE CONSTRUCTION |
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mypde=LinearPDE(domain) |
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mypde.setValue(A=kro,Y=4.*3.1415*G*rho,q=q,r=0) |
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sol=mypde.getSolution() |
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saveVTK(os.path.join(save_path,"ex10c.vtu"),\ |
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grav_pot=sol,\ |
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g_field=-grad(sol),\ |
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g_fieldz=-grad(sol)*[0,0,1],\ |
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gz=length(-grad(sol)*[0,0,1]),\ |
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fault=rho) |
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