[usask]

Hi,

I'm new with OpenFoam and I don't know how to resolve this problem (please see below). Actually, I did the grid in Salome. BuoyantBoussinesqSimpleFoam worked well with the first domain (that is just the room with inlets and exhaust fans) however, when I started putting in objects inside, I have been getting this problem. Can anyone please let me know what is the cause of the problem and possible solution?

Selecting RAS turbulence model kEpsilon
kEpsilonCoeffs
{
Cmu 0.09;
C1 1.44;
C2 1.92;
sigmaEps 1.3;
}

Reading field alphat

Calculating field g.h

No finite volume options present


SIMPLE: convergence criteria
field p_rgh tolerance 0.01
field U tolerance 0.01
field T tolerance 0.01
field "(k|epsilon|omega)" tolerance 0.01


Starting time loop

Time = 1

#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 in "/lib/x86_64-linux-gnu/libc.so.6"
#3 at tensorField.C:?
#4
at ??:?
#5
at ??:?
#6
at ??:?
#7
at ??:?
#8 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#9
at ??:?
Floating point exception (core dumped)

Thanks,
usask

[alexeym]

Hi,

According to your log and mention of buoyantBoussinesqSimpleFoam, the error is somewhere in

    tmp<fvVectorMatrix> UEqn
    (
        fvm::div(phi, U)
      + turbulence->divDevReff(U)
     ==
        fvOptions(U)
    );

So I guess, you need to check your ICs (as your solution diverges during first time step).