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-   -   problem in gas-solid fluidized bed simulation (http://www.cfd-online.com/Forums/openfoam-solving/93879-problem-gas-solid-fluidized-bed-simulation.html)

bhanwar October 29, 2011 06:37

problem in gas-solid fluidized bed simulation
 
Calculating averages

Courant Number mean: 0.605965 max: 1.27644
Max Ur Courant Number = 1.81825
Time = 0.061

DILUPBiCG: Solving for alpha, Initial residual = 0.274526, Final residual = 4.87573e-11, No Iterations 65
Dispersed phase volume fraction = 0.198 Min(alpha) = -0.0348437 Max(alpha) = 0.651658
DILUPBiCG: Solving for alpha, Initial residual = 0.0455936, Final residual = 3.07973e-11, No Iterations 37
Dispersed phase volume fraction = 0.198 Min(alpha) = -0.057928 Max(alpha) = 1.07894
#0 Foam::error::printStack(Foam::Ostream&) in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#1 Foam::sigFpe::sigHandler(int) in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#2 Uninterpreted:
#3 Foam::GAMGSolver::scalingFactor(Foam::Field<double >&, Foam::Field<double> const&, Foam::Field<double> const&, Foam::Field<double> const&) const in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#4 Foam::GAMGSolver::scalingFactor(Foam::Field<double >&, Foam::lduMatrix const&, Foam::Field<double>&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, unsigned char) const in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#5 Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMa trix::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 "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#6 Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#7 Foam::fvMatrix<double>::solve(Foam::dictionary const&) in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libfiniteVolume.so"
#8
in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/bin/twoPhaseEulerFoam"
#9 __libc_start_main in "/lib/tls/i686/cmov/libc.so.6"
#10
in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/bin/twoPhaseEulerFoam"

im not getting how to solve this error. can anyone suggest me what is wrong here??

alberto October 30, 2011 04:39

You need to explain the case setup you are using if you want an answer.

P.S. The problem is here: Max(alpha) = 1.07894


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