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-   -   rhoPorousSimpleFoam (http://www.cfd-online.com/Forums/openfoam-solving/75783-rhoporoussimplefoam.html)

Chrisi1984 May 5, 2010 04:54

rhoPorousSimpleFoam
 
Hello all!

I am new in using OpenFoam!

I prepared a implicite case for rhoPorousSimpleFoam like the tutorial case. But my calculation always stops after few timesteps.
From begin I get a "time step continuity error".
It stops with "maximum numbers of iterations exceeded" .To prevent this, I reduced the timestep and toyed with the relaxation factors, but all does not help to solve the problem.

I have yet solved the problem in a explicite case. This was only possible with very small relaxation factors. But the result doesn't fit well to the calculation with fluent. So I hope to get a better result with a implicite case.

My task is to simulate the flux through a catalyst. My mesh has 460000 cells.

If you need more information, easily tell me.
Thanks in advance!

Greets
Chris

Chrisi1984 May 5, 2010 05:36

error message
 
Here is my error message:

Maximum number of iterations exceeded#0 Foam::error:.printStack(Foam::Ostream&) in "/cfd/CFD/PROGRAMME/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so"
#1 Foam::error::abort() in "/cfd/CFD/PROGRAMME/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so"
#2 Foam::hPsiThermo<Foam:.pureMixture<Foam::constTran sport<Foam::specieThermo<Foam::hConstThermo<Foam:: perfectGas> > > > >::calculate() in "/cfd/CFD/PROGRAMME/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libbasicThermophysicalModels.so"
#3 Foam::hPsiThermo<Foam:.pureMixture<Foam::constTran sport<Foam::specieThermo<Foam::hConstThermo<Foam:: perfectGas> > > > >::correct() in "/cfd/CFD/PROGRAMME/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libbasicThermophysicalModels.so"
#4 main in "/cfd/CFD/PROGRAMME/OpenFOAM/OpenFOAM-1.6/applications/bin/linux64GccDPOpt/rhoPorousSimpleFoam"
#5 __libc_start_main in "/lib64/libc.so.6"
#6 _start at /usr/src/packages/BUILD/glibc-2.9/csu/../sysdeps/x86_64/elf/start.S:116


From function specieThermo<thermo>::T(scalar f, scalar T0, scalar (specieThermo<thermo>::*F)(const scalar) const, scalar (specieThermo<thermo>::*dFdT)(const scalar) const) const
in file /home/dm2/henry/OpenFOAM/OpenFOAM-1.6/src/thermophysicalModels/specie/lnInclude/specieThermoI.H at line 68.


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