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October 18, 2012, 19:03 |
Foam:: Error:: PrintStack
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#1 |
New Member
Reno
Join Date: Sep 2012
Posts: 27
Rep Power: 13 |
I am running an example of flow in pipe using openfoam (Ubuntu), I get following error, although it works fine till time point 16, How to fix the error.
Files are here: http://dl.dropbox.com/u/68983831/files.zip // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Create mesh for time = 0 Reading transportProperties Reading field p Reading field U Reading/calculating face flux field phi Starting time loop Time = 15 Courant Number mean: 2.30651e+31 max: 4.76733e+34 DILUPBiCG: Solving for Ux, Initial residual = 0.998836, Final residual = 0.0837974, No Iterations 14 DILUPBiCG: Solving for Uy, Initial residual = 0.999846, Final residual = 0.079946, No Iterations 5 DILUPBiCG: Solving for Uz, Initial residual = 0.999593, Final residual = 0.0819008, No Iterations 13 DICPCG: Solving for p, Initial residual = 1, Final residual = 0.000810451, No Iterations 2 time step continuity errors : sum local = 8.6096e+60, global = -1.31187e+44, cumulative = -1.31187e+44 DICPCG: Solving for p, Initial residual = 0.997834, Final residual = 0.00011985, No Iterations 1 time step continuity errors : sum local = 3.07997e+62, global = 9.1217e+45, cumulative = 8.99052e+45 ExecutionTime = 1.84 s ClockTime = 3 s Time = 16 Courant Number mean: 3.06096e+62 max: 5.97395e+65 DILUPBiCG: Solving for Ux, Initial residual = 0.585237, Final residual = 0.0331803, No Iterations 23 DILUPBiCG: Solving for Uy, Initial residual = 0.58276, Final residual = 0.0407138, No Iterations 12 DILUPBiCG: Solving for Uz, Initial residual = 0.908282, Final residual = 0.0424477, No Iterations 1 #0 Foam::error:rintStack(Foam::Ostream&) in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #1 Foam::sigFpe::sigHandler(int) in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #2 Uninterpreted: #3 Foam:ICPreconditioner::calcReciprocalD(Foam::Field <double>&, Foam::lduMatrix const&) in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #4 Foam:ICPreconditioner:ICPreconditioner(Foam::lduMa trix::solver const&, Foam::dictionary const&) in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #5 Foam::lduMatrix:reconditioner::addsymMatrixConstru ctorToTable<Foam:ICPreconditioner>::New(Foam::lduM atrix::solver const&, Foam::dictionary const&) in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #6 Foam::lduMatrix:reconditioner::New(Foam::lduMatrix ::solver const&, Foam::dictionary const&) in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #7 Foam::PCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so" #8 Foam::fvMatrix<double>::solve(Foam::dictionary const&) in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libfiniteVolume.so" #9 in "/opt/openfoam211/platforms/linuxGccDPOpt/bin/icoFoam" #10 __libc_start_main in "/lib/i386-linux-gnu/libc.so.6" #11 in "/opt/openfoam211/platforms/linuxGccDPOpt/bin/icoFoam" Floating point exception (core dumped) //************************************************** ************************************************** *****// Last edited by jr33; October 18, 2012 at 19:14. Reason: more information |
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October 18, 2012, 19:19 |
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#2 | |
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Bernhard Gschaider
Join Date: Mar 2009
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Quote:
Problems start probably even further up (there is probably a problem with your case) Best way to find the error is write out every time-step (with 16 timesteps to failure this should be possible), have a look at them and find out what is going wrong
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October 18, 2012, 19:23 |
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#3 | |
New Member
Reno
Join Date: Sep 2012
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Quote:
I saw at time point 1: Courant Number mean: 5.80776 max: 1368.61 Thanks |
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October 18, 2012, 19:29 |
Above error came when I fixed keyword laplacian
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#4 |
New Member
Reno
Join Date: Sep 2012
Posts: 27
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time Create mesh for time = 10 Reading transportProperties Reading field p Reading field U Reading/calculating face flux field phi Starting time loop Time = 11 Courant Number mean: 1.54422e+12 max: 7.57587e+14 --> FOAM FATAL IO ERROR: keyword laplacian(nu,U) is undefined in dictionary "/home/jay/OpenFOAM/jay-2.1.1/run/tutorials/incompressible/simpleFoam/elbow/system/fvSchemes::laplacianSchemes" file: /home/jay/OpenFOAM/jay-2.1.1/run/tutorials/incompressible/simpleFoam/elbow/system/fvSchemes::laplacianSchemes from line 44 to line 50. From function dictionary::lookupEntry(const word&, bool, bool) const in file db/dictionary/dictionary.C at line 400. FOAM exiting |
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