/[escript]/trunk/doc/examples/helmholtz.py
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Contents of /trunk/doc/examples/helmholtz.py

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Revision 2344 - (show annotations)
Mon Mar 30 02:13:58 2009 UTC (10 years, 7 months ago) by jfenwick
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Change __url__ to launchpad site

1
2 ########################################################
3 #
4 # Copyright (c) 2003-2008 by University of Queensland
5 # Earth Systems Science Computational Center (ESSCC)
6 # http://www.uq.edu.au/esscc
7 #
8 # Primary Business: Queensland, Australia
9 # Licensed under the Open Software License version 3.0
10 # http://www.opensource.org/licenses/osl-3.0.php
11 #
12 ########################################################
13
14 __copyright__="""Copyright (c) 2003-2008 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 http://www.opensource.org/licenses/osl-3.0.php"""
20 __url__="https://launchpad.net/escript-finley"
21
22 # $Id$
23 from esys.escript import *
24 from esys.escript.linearPDEs import LinearPDE
25 from esys.finley import Rectangle
26 #... set some parameters ...
27 kappa=1.
28 omega=0.1
29 eta=10.
30 #... generate domain ...
31 mydomain = Rectangle(l0=5.,l1=1.,n0=50, n1=10)
32 #... open PDE and set coefficients ...
33 mypde=LinearPDE(mydomain)
34 mypde.setSymmetryOn()
35 n=mydomain.getNormal()
36 x=mydomain.getX()
37 mypde.setValue(A=kappa*kronecker(mydomain),D=omega,Y=omega*x[0], \
38 d=eta,y=kappa*n[0]+eta*x[0])
39 #... calculate error of the PDE solution ...
40 u=mypde.getSolution()
41 print "error is ",Lsup(u-x[0])
42 # output should be similar to "error is 1.e-7"
43 saveVTK("x0.xml",sol=u)
44

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