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

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Revision 1388 - (hide annotations)
Fri Jan 11 07:45:58 2008 UTC (11 years, 1 month ago) by trankine
File MIME type: text/x-python
File size: 652 byte(s)
And get the *(&(*&(* name right
1 jgs 102 # $Id$
2 gross 567 from esys.escript import *
3 gross 569 from esys.escript.linearPDEs import LinearPDE
4 jgs 108 from esys.finley import Rectangle
5 jgs 102 #... set some parameters ...
6 jgs 108 kappa=1.
7 jgs 102 omega=0.1
8     eta=10.
9     #... generate domain ...
10 jgs 113 mydomain = Rectangle(l0=5.,l1=1.,n0=50, n1=10)
11 jgs 102 #... open PDE and set coefficients ...
12 gross 567 mypde=LinearPDE(mydomain)
13     mypde.setSymmetryOn()
14 jgs 102 n=mydomain.getNormal()
15     x=mydomain.getX()
16 gross 569 mypde.setValue(A=kappa*kronecker(mydomain),D=omega,Y=omega*x[0], \
17     d=eta,y=kappa*n[0]+eta*x[0])
18 jgs 102 #... calculate error of the PDE solution ...
19     u=mypde.getSolution()
20 gross 569 print "error is ",Lsup(u-x[0])
21 lkettle 575 # output should be similar to "error is 1.e-7"
22     saveVTK("x0.xml",sol=u)
23    

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