[Subhasree]

Hi everyone,

I have used GMSH to mesh an external flow domain over a model building and using pisoFoam to simulate its flow. I am simulating laminar flow at sea-level conditions having velocity of 10 m/s.

I have converted the mesh from GMSh to OpenFoam, but on using pisoFoam solver I am getting the following error:

Create time

Create mesh for time = 0

Reading field p

Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian
Selecting turbulence model type RASModel
Selecting RAS turbulence model kEpsilon

Starting time loop

Time = 0.005

Courant Number mean: 0.166758 max: 7.5028
#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam::GaussSeidelSmoother::smooth(Foam::word const&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::Field<double> const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, unsigned char, int) at ??:?
#4 Foam::GaussSeidelSmoother::smooth(Foam::Field<doub le>&, Foam::Field<double> const&, unsigned char, int) const at ??:?
#5 Foam::smoothSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
#6 ? at ??:?
#7 ? at ??:?
#8 ? at ??:?
#9 ? at ??:?
#10 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#11 ? at ??:?
Floating point exception (core dumped)

Please help me!!!

[Svensen]

Courant number is too high. decrease deltaT in system/controlDict until the max Courant number will be less than 1.

[Subhasree]

Thank you for the reply. Problem solved!