# problem in gas-solid fluidized bed simulation

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 October 29, 2011, 06:37 problem in gas-solid fluidized bed simulation #1 New Member   bhanwar singh Join Date: Jul 2011 Location: GUWAHATI Posts: 8 Rep Power: 7 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:rintStack(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&, Foam::Field const&, Foam::Field const&, Foam::Field const&) const in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #4 Foam::GAMGSolver::scalingFactor(Foam::Field&, Foam::lduMatrix const&, Foam::Field&, Foam::FieldField const&, Foam::UPtrList const&, Foam::Field const&, unsigned char) const in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #5 Foam::GAMGSolver::Vcycle(Foam::PtrList const&, Foam::Field&, Foam::Field const&, Foam::Field&, Foam::Field&, Foam::Field&, Foam::PtrList >&, Foam::PtrList >&, unsigned char) const in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #6 Foam::GAMGSolver::solve(Foam::Field&, Foam::Field const&, unsigned char) const in "/home/anoop/OpenFOAM/OpenFOAM-2.0.x/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #7 Foam::fvMatrix::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??

 October 30, 2011, 04:39 #2 Senior Member   Alberto Passalacqua Join Date: Mar 2009 Location: Ames, Iowa, United States Posts: 1,907 Rep Power: 27 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 __________________ Alberto Passalacqua GeekoCFD - A free distribution based on openSUSE 64 bit with CFD tools, including OpenFOAM. Available as in both physical and virtual formats. OpenQBMM - An open-source implementation of quadrature-based moment methods. To obtain more accurate answers, please specify the version of OpenFOAM you are using.

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