/[escript]/trunk/finley/test/python/convection.py
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revision 2336 by gross, Wed Nov 26 08:13:00 2008 UTC revision 2337 by gross, Thu Mar 26 07:07:42 2009 UTC
# Line 55  NE=int(options.NE) Line 55  NE=int(options.NE)
55  DIM=2  DIM=2
56  H=1.  H=1.
57  L=4*H  L=4*H
58  THETA=0.5 # time stepping THETA=0.5 cranck nicolson  USE_BACKWARD_EULER=False
59  TOL=1.e-4  TOL=1.e-4
60  PERTURBATION=0.1  PERTURBATION=0.1
61  DT=1.e-4  DT=1.e-4
# Line 180  x=dom.getX() Line 180  x=dom.getX()
180  #  #
181  #   set up heat problem:  #   set up heat problem:
182  #  #
183  heat=TemperatureCartesian(dom,theta=THETA)  heat=TemperatureCartesian(dom,useBackwardEuler=USE_BACKWARD_EULER)
184  heat.setTolerance(TOL*extratol)  heat.setTolerance(TOL*extratol)
185    
186  fixed_T_at=whereZero(x[DIM-1])+whereZero(H-x[DIM-1])  fixed_T_at=whereZero(x[DIM-1])+whereZero(H-x[DIM-1])
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