[OMN]

Hello

I tried to set up a rough wall for a run with buoyantSimpleFoam using the syntax:

wall
{
type mutRoughWallFunction;
Ks uniform 0.005;
Cs uniform 0.5;
value uniform 0;
}

and I got this error message after starting buoyantSimpleFoam:

Selecting RAS turbulence model realizableKE
#0 Foam::error:rintStack(Foam::Ostream&) in "/opt/openfoam170/lib/linuxGccDPOpt/libOpenFOAM.so"
#1 Foam::sigFpe::sigFpeHandler(int) in "/opt/openfoam170/lib/linuxGccDPOpt/libOpenFOAM.so"
#2 Uninterpreted:
#3 log in "/lib/tls/i686/cmov/libm.so.6"
#4 Foam::compressible::RASModel::yPlusLam(double, double) const in "/opt/openfoam170/lib/linuxGccDPOpt/libcompressibleRASModels.so"
#5 Foam::compressible::RASModels::mutRoughWallFunctio nFvPatchScalarField::calcMut() const in "/opt/openfoam170/lib/linuxGccDPOpt/libcompressibleRASModels.so"
#6 Foam::compressible::RASModels::mutWallFunctionFvPa tchScalarField::updateCoeffs() in "/opt/openfoam170/lib/linuxGccDPOpt/libcompressibleRASModels.so"
#7 Foam::fvPatchField<double>::evaluate(Foam::Pstream ::commsTypes) in "/opt/openfoam170/applications/bin/linuxGccDPOpt/buoyantSimpleFoam"
#8 Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::GeometricBoundaryField::evaluate() in "/opt/openfoam170/applications/bin/linuxGccDPOpt/buoyantSimpleFoam"
#9 Foam::compressible::RASModels::realizableKE::reali zableKE(Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&, Foam::basicThermo const&) in "/opt/openfoam170/lib/linuxGccDPOpt/libcompressibleRASModels.so"
#10 Foam::compressible::RASModel::adddictionaryConstru ctorToTable<Foam::compressible::RASModels::realiza bleKE>::New(Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&, Foam::basicThermo const&) in "/opt/openfoam170/lib/linuxGccDPOpt/libcompressibleRASModels.so"
#11 Foam::compressible::RASModel::New(Foam::GeometricF ield<double, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&, Foam::basicThermo const&) in "/opt/openfoam170/lib/linuxGccDPOpt/libcompressibleRASModels.so"
#12
in "/opt/openfoam170/applications/bin/linuxGccDPOpt/buoyantSimpleFoam"
#13 __libc_start_main in "/lib/tls/i686/cmov/libc.so.6"
#14
in "/opt/openfoam170/applications/bin/linuxGccDPOpt/buoyantSimpleFoam"
Floating point exception

Would someone know what the problem is? Everything works fine with mutWallFunction.

I also tried to use mutRoughWallFunction in the hotroom tutorial for buoyantSimpleFoam but I got the same error message. Is this a bug or my lack of understanding of the use of mutRoughWallFunction?

Cheers

Olivier

[aerothermal]

Please try this

export FOAM_SIGFPE=false

unset FOAM_SIGFPE