[songyi719]

I made a wedge mesh using salome and converted to openfoam using unv, and ran a test case.

Then, it showed such sigFpe error, exploding velocity values over 1e35

I also made full 3d mesh which is same geometry as revolved wedge mesh, and it worked fine. Therefore it seems like problem to mesh, not solver setting.

Wedge was rotated 5 degree, and form shape of nozzle. It isn't single layer wedge, and mainly tetrahedral due to salome setting and ease for converting

What could be the solution? Wedge is already 5 degree so increasing angle seems impractical...

[9] #0  Foam::error::printStack(Foam::Ostream&) at ??:?
[9] #1  Foam::sigFpe::sigHandler(int) at ??:?
[9] #2  ? in "/lib/x86_64-linux-gnu/libc.so.6"
[9] #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 ??:?
[9] #4  Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMatrix::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 ??:?
[9] #5  Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
[9] #6  Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ??:?
[9] #7  Foam::fvMatrix<double>::solve(Foam::dictionary const&) in "/opt/openfoam10/platforms/linux64GccDPInt32Opt/bin/simpleFoam"
[9] #8  Foam::fvMatrix<double>::solve() in "/opt/openfoam10/platforms/linux64GccDPInt32Opt/bin/simpleFoam"
[9] #9  ? in "/opt/openfoam10/platforms/linux64GccDPInt32Opt/bin/simpleFoam"
[9] #10  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
[9] #11  ? in "/opt/openfoam10/platforms/linux64GccDPInt32Opt/bin/simpleFoam"
[openfoam:308243] *** Process received signal ***
[openfoam:308243] Signal: Floating point exception (8)
[openfoam:308243] Signal code:  (-6)
[openfoam:308243] Failing at address: 0x3e80004b413
[openfoam:308243] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x43090)[0x7fe5f6c92090]
[openfoam:308243] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xcb)[0x7fe5f6c9200b]
[openfoam:308243] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x43090)[0x7fe5f6c92090]
[openfoam:308243] [ 3] /opt/openfoam10/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5scaleERNS_5FieldIdEES3_RKNS_9lduMatrixERKNS_10FieldFieldIS1_dEERKNS_8UPtrListIKNS_17lduInterfaceFieldEEERKS2_h+0x260)[0x7fe5f76c9bb0]
[openfoam:308243] [ 4] /opt/openfoam10/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver6VcycleERKNS_7PtrListINS_9lduMatrix8smootherEEERNS_5FieldIdEERKS8_S9_S9_S9_S9_S9_RNS1_IS8_EESD_h+0x85d)[0x7fe5f76cda7d]

[Tobermory]

What does checkMesh say? Is it happy with the mesh?

[songyi719]

Yes checkmesh is good...