[Reptider]

Hello! I have created case where sphere is streamlined with laminar regime.
case can be downloaded from: https://drive.google.com/file/d/1HwL...ew?usp=sharing
I use rhoCentralFoam to calculate fields and use boundary condition on the wall like externalWallHeatFluxTemperature to assing heat flux on this patch. But when I run simulation I get this problem:

Starting time loop

Mean and max Courant Numbers = 0.124418 0.701491
deltaT = 2.85103e-06
Time = 2.85103e-06

diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
diagonal:  Solving for rhoUx, Initial residual = 0, Final residual = 0, No Iterations 0
diagonal:  Solving for rhoUy, Initial residual = 0, Final residual = 0, No Iterations 0
diagonal:  Solving for rhoUz, Initial residual = 0, Final residual = 0, No Iterations 0
smoothSolver:  Solving for Ux, Initial residual = 1, Final residual = 3.72523e-05, No Iterations 2
smoothSolver:  Solving for Uy, Initial residual = 1, Final residual = 4.35482e-05, No Iterations 2
smoothSolver:  Solving for Uz, Initial residual = 1, Final residual = 4.27089e-05, No Iterations 2
diagonal:  Solving for rhoE, Initial residual = 0, Final residual = 0, No Iterations 0
#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::sigFpe::sigHandler(int) at ??:?
#2  ? in /lib/x86_64-linux-gnu/libc.so.6
#3  Foam::heThermo<Foam::psiThermo, Foam::pureMixture<Foam::sutherlandTransport<Foam::species::thermo<Foam::janafThermo<Foam::perfectGas<Foam::specie> >, Foam::sensibleInternalEnergy> > > >::he(Foam::Field<double> const&, Foam::Field<double> const&, int) const at ??:?
#4  Foam::mixedEnergyFvPatchScalarField::updateCoeffs() at ??:?
#5  Foam::mixedFvPatchField<double>::evaluate(Foam::UPstream::commsTypes) at ??:?
#6  Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::Boundary::evaluate() in ~/OpenFOAM/OpenFOAM-v1912/platforms/linux64GccDPInt32Opt/bin/rhoCentralFoam
#7  ? in ~/OpenFOAM/OpenFOAM-v1912/platforms/linux64GccDPInt32Opt/bin/rhoCentralFoam
#8  __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
#9  ? in ~/OpenFOAM/OpenFOAM-v1912/platforms/linux64GccDPInt32Opt/bin/rhoCentralFoam
Floating point exception (core dumped)

By the way, if I use fixed temperature on the wall patch simulation runs correctly without issues. Could you give me some advise?

[piu58]

The solver crashes solving rhoE. I recommend checking the boundary conditions for that. May be, there are non physical.