Problem with rhoSimpleFoam
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I am trying to simulate a simple Plane configuration. M=0.9 & alpha-1.
No.Of cells : 459487 (tetrahedral). Solver : rhoSimpleFoam I attached the "system" folder. when i run the simulation i receive the following error. idea@IDeA:~/OpenFOAM/idea-1.6/run/Problems/RAEplane$ rhoSimpleFoam /*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 1.6 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ Build : 1.6-f802ff2d6c5a Exec : rhoSimpleFoam Date : Mar 16 2010 Time : 16:15:11 Host : IDeA PID : 13488 Case : /home/idea/OpenFOAM/idea-1.6/run/Problems/RAEplane nProcs : 1 SigFpe : Enabling floating point exception trapping (FOAM_SIGFPE). // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Create mesh for time = 0 Reading thermophysical properties Selecting thermodynamics package hPsiThermo<pureMixture<constTransport<specieThermo <hConstThermo<perfectGas>>>>> Reading field U Reading/calculating face flux field phi Creating turbulence model Selecting RAS turbulence model laminar Starting time loop Time = 1 #0 Foam::error::printStack(Foam::Ostream&) in "/home/idea/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so" #1 Foam::sigFpe::sigFpeHandler(int) in "/home/idea/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so" #2 ?? in "/lib/libc.so.6" #3 Foam::DILUPreconditioner::calcReciprocalD(Foam::Fi eld<double>&, Foam::lduMatrix const&) in "/home/idea/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so" #4 Foam::DILUPreconditioner::DILUPreconditioner(Foam: :lduMatrix::solver const&, Foam::dictionary const&) in "/home/idea/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so" #5 Foam::lduMatrix::preconditioner::addasymMatrixCons tructorToTable<Foam::DILUPreconditioner>::New(Foam ::lduMatrix::solver const&, Foam::dictionary const&) in "/home/idea/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so" #6 Foam::lduMatrix::preconditioner::New(Foam::lduMatr ix::solver const&, Foam::dictionary const&) in "/home/idea/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so" #7 Foam::PBiCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/home/idea/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so" #8 Foam::fvMatrix<Foam::Vector<double> >::solve(Foam::dictionary const&) in "/home/idea/OpenFOAM/OpenFOAM-1.6/applications/bin/linux64GccDPOpt/rhoSimpleFoam" #9 main in "/home/idea/OpenFOAM/OpenFOAM-1.6/applications/bin/linux64GccDPOpt/rhoSimpleFoam" #10 __libc_start_main in "/lib/libc.so.6" #11 _start at /usr/src/packages/BUILD/glibc-2.9/csu/../sysdeps/x86_64/elf/start.S:116 Floating point exception Anyone please help me. Regards mecbe :confused: |
Hi mecbe,
A so early crash often indicates and error in the internal field values at the start. Make sure to use absolute pressure and absolute temperature. Also the turbulence properties in the internal field should be non-zero. Maybe this helps stawrogin |
Hi all,
where can I check if absolute or relative pressure is used? Moreover, if I want to use a reference pressure of 101325 [Pa], where have I to set it? |
You have to explore the code to see whether it uses absolute or relative pressure..
I am not sure about specifying free stream values.. Check this link. It may help http://www.aero.polimi.it/freecase/?...:ONERA_M6_wing Regards mecbe |
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