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#1 |
New Member
Aniruddha Saha
Join Date: Mar 2022
Posts: 9
Rep Power: 4 ![]() |
Hi everyone,
I am running a simpleFoam case of a flow through a pipe that is 30nm in diameter. It is encountering a crash as I have pasted below. Please help me understand what it means and how can I rectify the error. The case is very simple, just the length-scale of the physics is really small. Time = 1 smoothSolver: Solving for Ux, Initial residual = 1, Final residual = 0.0876985, No Iterations 2 smoothSolver: Solving for Uy, Initial residual = 1, Final residual = 0.0948737, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 1, Final residual = 0.0951056, No Iterations 3 #0 Foam::error: ![]() #1 Foam::sigFpe::sigHandler(int) at ??:? #2 ? in /lib/x86_64-linux-gnu/libpthread.so.0 #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 at ??:? #4 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::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const at ??:? #5 Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:? #6 Foam::fvMatrix<double>::solveSegregated(Foam::dict ionary const&) at ??:? #7 Foam::fvMatrix<double>::solveSegregatedOrCoupled(F oam::dictionary const&) at ??:? #8 Foam::fvMesh::solve(Foam::fvMatrix<double>&, Foam::dictionary const&) const at ??:? #9 ? in /usr/lib/openfoam/openfoam2106/platforms/linux64GccDPInt32Opt/bin/simpleFoam #10 __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6 #11 ? in /usr/lib/openfoam/openfoam2106/platforms/linux64GccDPInt32Opt/bin/simpleFoam Floating point exception (core dumped) |
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#2 |
Member
JuanMi
Join Date: Nov 2017
Posts: 41
Rep Power: 8 ![]() |
I guess the problem is the boundary conditions. But I would follow the following steps:
Check the tutorial angleDuct and the boundary conditions. Try to reproduce a problem like this: https://skill-lync.com/blogs/simulat...using-openfoam If It works, and your case produces a crash, the reason could be the size of the problem. Try to scale your problem. |
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simplefoam gamg |
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