[jptorol]

Hi Foamers: I am simulating the flow over a stepped spillway using OF version 2.2.0
The flow is simulated using pimpleFoam solver and RANS approach (v2-f model). I did the geometry in Autocad and exported as a stl file. SnappyHexMesh works fine and my mesh is ok.

My model runs OK but... when I change the pressure BC in the upper part (surface) from zeroGradient to fixedFluxPressure I have the following error (segmentation fault):

PIMPLE: Operating solver in PISO mode


Starting time loop

Courant Number mean: 0.000814549 max: 0.394101
deltaT = 0.000335796
Time = 0.000335796

DILUPBiCG: Solving for Ux, Initial residual = 1, Final residual = 2.333e-11, No Iterations 2
DILUPBiCG: Solving for Uy, Initial residual = 1, Final residual = 6.42672e-11, No Iterations 2
#0 Foam::error:rintStack(Foam::Ostream&) in "/opt/openfoam220/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#1 Foam::sigSegv::sigHandler(int) in "/opt/openfoam220/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#2 Uninterpreted:
#3 Foam::divide(Foam::Field<double>&, Foam::UList<double> const&, Foam::UList<double> const&) in "/opt/openfoam220/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#4 Foam:perator/(Foam::tmp<Foam::Field<double> > const&, Foam::UList<double> const&) in "/opt/openfoam220/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#5 Foam::fixedFluxPressureFvPatchScalarField::updateC oeffs() in "/opt/openfoam220/platforms/linuxGccDPOpt/lib/libfiniteVolume.so"
#6 at gaussLaplacianSchemes.C:0
#7 Foam::fv::gaussLaplacianScheme<double, double>::fvmLaplacianUncorrected(Foam::GeometricFi eld<double, Foam::fvsPatchField, Foam::surfaceMesh> const&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&) in "/opt/openfoam220/platforms/linuxGccDPOpt/lib/libfiniteVolume.so"
#8 Foam::fv::gaussLaplacianScheme<double, double>::fvmLaplacian(Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&) in "/opt/openfoam220/platforms/linuxGccDPOpt/lib/libfiniteVolume.so"
#9 Foam::fv::laplacianScheme<double, double>::fvmLaplacian(Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&) in "/opt/openfoam220/platforms/linuxGccDPOpt/lib/libfiniteVolume.so"
#10 Foam::tmp<Foam::fvMatrix<double> > Foam::fvm::laplacian<double, double>(Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&, Foam::word const&) in "/opt/openfoam220/platforms/linuxGccDPOpt/bin/pimpleFoam"
#11
at pimpleFoam.C:0
#12
in "/opt/openfoam220/platforms/linuxGccDPOpt/bin/pimpleFoam"
#13 __libc_start_main in "/lib/i386-linux-gnu/libc.so.6"
#14
in "/opt/openfoam220/platforms/linuxGccDPOpt/bin/pimpleFoam"
Segmentation fault (core dumped)

There are any thoughts you would like to share, thank you in advance
JP