[Vishal Garg]

Hello Everyone

I am using chtMultiRegionSimpleFoam for solving fluid and heat transfer in annulus.
my simulation is running well for pipe length of 100 m but it creates problem for pipe length more than 100 m.
Just by changing geometry, why i am getting error.
please tell me where i am doing wrong.

i am attaching the my 0, constant and system folder

Error i am getting is
[#0 Foam::error:rintStack(Foam::Ostream&) in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
#1 Foam::sigFpe::sigHandler(int) in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
#2 ? in /lib/x86_64-linux-gnu/libc.so.6
#3 Foam::divide(Foam::Field<double>&, double const&, Foam::UList<double> const&) in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
#4 Foam:perator/(double const&, Foam::tmp<Foam::Field<double> > const&) in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
#5 Foam::basicFvGeometryScheme::deltaCoeffs() const in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so
#6 Foam::surfaceInterpolation::deltaCoeffs() const in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so
#7 Foam::fvPatch::deltaCoeffs() const in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so
#8 ? in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so
#9 ? in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so
#10 ? in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so
#11 ? in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so
#12 ? in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so
#13 Foam::rhoThermo::addfvMeshConstructorToTable<Foam: :heRhoThermo<Foam::rhoThermo, Foam:ureMixture<Foam::constTransport<Foam::speci es::thermo<Foam::hConstThermo<Foam::rhoConst<Foam: :specie> >, Foam::sensibleEnthalpy> > > > >::New(Foam::fvMesh const&, Foam::word const&) in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so
#14 ? in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so
#15 Foam::rhoThermo::New(Foam::fvMesh const&, Foam::word const&) in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so
#16 ? in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/bin/chtMultiRegionSimpleFoam
#17 ? in /lib/x86_64-linux-gnu/libc.so.6
#18 __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
#19 ? in /usr/lib/openfoam/openfoam2212/platforms/linux64GccDPInt32Opt/bin/chtMultiRegionSimpleFoam
Floating point exception (core dumped)
]

please look at once and give me suggestion for correction.

[anubasu]

I am also facing this issue with interFoam sometimes.

[Vishal Garg]

Dear All
please suggest me solution regarding this problem.