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Need some information on how to use FvSchemes

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Old   June 16, 2020, 04:31
Post Need some information on how to use FvSchemes
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Lucie Recurt
Join Date: Jun 2020
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I'm currently a intern in a startup and I have to work on OpenFoam.

I'm trying to understand the differencies between all the fvScheme that I can use. I started with the ddt schemes. I read the specificity of each and that Crank-Nicolson 0.9 is the most robust. But when I use this scheme, I got this error message:

Courant Number mean: 0.0112231 max: 7.96644
#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 ? in "/lib/x86_64-linux-gnu/"
#3 Foam::symGaussSeidelSmoother::smooth(Foam::word const&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::Field<double> const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, unsigned char, int) at ??:?
#4 Foam::symGaussSeidelSmoother::smooth(Foam::Field<d ouble>&, Foam::Field<double> const&, unsigned char, int) const at ??:?
#5 Foam::smoothSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
#6 ? in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/icoFoam"
#7 ? in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/icoFoam"
#8 ? in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/icoFoam"
#9 ? in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/icoFoam"
#10 __libc_start_main in "/lib/x86_64-linux-gnu/"
#11 ? in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/icoFoam"
Exception en point flottant (core dumped)

Do someone know why?

And do you have good documents that explain very well how to use each scheme?

Best regards;

lucie.recurt is offline   Reply With Quote


cranck-nicolson, ddtschemes, fvschemes, time setting

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