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Problem to run kEpsilonSST in OpenFOAM

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Old   May 22, 2013, 10:28
Default Problem to run kEpsilonSST in OpenFOAM
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Anselme Bonnet
Join Date: Apr 2013
Location: France
Posts: 14
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Hi everyone,

I'm trying to adapt the tutorial "motorBike" which contains kEpsilonSST turbulence model to my own case "the Backward facing step".

I'm not running in parallel. I just implemented the classical files to run a computation.

The computation starts and the residuals look good except "time step continuity errors" which crash.

I don't understand where the problem is. My boundaries conditions seem good.

I get this error in the terminal.
Time = 33
smoothSolver:  Solving for Ux, Initial residual = 0.545989, Final residual = 0.0462827, No Iterations 34
smoothSolver:  Solving for Uy, Initial residual = 0.495099, Final residual = 0.0440825, No Iterations 28
GAMG:  Solving for p, Initial residual = 0.999999, Final residual = 0.104651, No Iterations 1000
time step continuity errors : sum local = 7.15765e+24, global = -1.17591e+21, cumulative = -1.17591e+21
smoothSolver:  Solving for omega, Initial residual = 0.962478, Final residual = 0.0860166, No Iterations 18
smoothSolver:  Solving for k, Initial residual = 0.53023, Final residual = 2.24728e-06, No Iterations 1
ExecutionTime = 61.86 s  ClockTime = 62 s
Time = 34
smoothSolver:  Solving for Ux, Initial residual = 0.388555, Final residual = 192672, No Iterations 1000
smoothSolver:  Solving for Uy, Initial residual = 0.448615, Final residual = 32484.1, No Iterations 1000
#0  Foam::error::printStack(Foam::Ostream&) in "/opt/openfoam220/platforms/linux64GccDPOpt/lib/"
#1  Foam::sigFpe::sigHandler(int) in "/opt/openfoam220/platforms/linux64GccDPOpt/lib/"
#2   in "/lib/x86_64-linux-gnu/"
#3  Foam::GAMGSolver::scale(Foam::Field<double>&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, unsigned char) const in "/opt/openfoam220/platforms/linux64GccDPOpt/lib/"
#4  Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMatrix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const in "/opt/openfoam220/platforms/linux64GccDPOpt/lib/"
#5  Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/opt/openfoam220/platforms/linux64GccDPOpt/lib/"
#6  Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) in "/opt/openfoam220/platforms/linux64GccDPOpt/lib/"
#7  Foam::fvMatrix<double>::solve(Foam::dictionary const&) in "/opt/openfoam220/platforms/linux64GccDPOpt/bin/simpleFoam"
 in "/opt/openfoam220/platforms/linux64GccDPOpt/bin/simpleFoam"
#9  __libc_start_main in "/lib/x86_64-linux-gnu/"
 in "/opt/openfoam220/platforms/linux64GccDPOpt/bin/simpleFoam"
Floating point exception (core dumped)
I will be very grateful if someone could help me ! If necessary I can provide other files.

Best regards,
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