k.kshitij 
July 23, 2013 00:45 
How to debug the error for LTSInterFoam
Hi All,
I'm performing steady state CFD simulation for atomizing a liquid jet in a cylindrical nozzle. I have compiled the code in debug mode and I get the following message when my simulation diverges, can anybody please suggest me what does the error message say. I want to learn in general how to understand these messages and locate where the problem is. Thanks in anticipation.
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Create time
Create mesh for time = 0
Reading field p_rgh
Reading field U
Reading/calculating face flux field phi
Reading transportProperties
Selecting incompressible transport model Newtonian
Selecting incompressible transport model Newtonian
Selecting turbulence model type RASModel
Selecting RAS turbulence model kEpsilon
kEpsilonCoeffs
{
Cmu 0.09;
C1 1.44;
C2 1.92;
sigmaEps 1.3;
}
Reading g
Calculating field g.h
No finite volume options present
PIMPLE: Operating solver in PISO mode
time step continuity errors : sum local = 11.5327, global = 11.5327, cumulative = 11.5327
GAMGPCG: Solving for pcorr, Initial residual = 1, Final residual = 0.0252914, No Iterations 4
GAMGPCG: Solving for pcorr, Initial residual = 0.000189297, Final residual = 8.84765e06, No Iterations 2
time step continuity errors : sum local = 0.380693, global = 0.00297738, cumulative = 11.5297
Courant Number mean: 5737.01 max: 435114
Starting time loop
Time = 1
Flow time scale min/max = 1.28348e05, 1e+15
Smoothed flow time scale min/max = 1.28348e05, 5.36101e+14
MULES: Solving for alpha1
Phase1 volume fraction = 3.70466e05 Min(alpha1) = 0 Max(alpha1) = 1
MULES: Solving for alpha1
Phase1 volume fraction = 7.41328e05 Min(alpha1) = 0 Max(alpha1) = 1
MULES: Solving for alpha1
Phase1 volume fraction = 0.000111258 Min(alpha1) = 0 Max(alpha1) = 1
MULES: Solving for alpha1
Phase1 volume fraction = 0.000148421 Min(alpha1) = 0 Max(alpha1) = 1
DILUPBiCG: Solving for epsilon, Initial residual = 1, Final residual = 0.0333823, No Iterations 12
bounding epsilon, min: 4.2004e06 max: 2.56295e05 average: 5.48135e06
DILUPBiCG: Solving for k, Initial residual = 1, Final residual = 0.000150965, No Iterations 1
#0 Foam::error::printStack(Foam::Ostream&) at ~/OpenFOAM/OpenFOAM2.2.0/src/OSspecific/POSIX/printStack.C:221
#1 Foam::sigFpe::sigHandler(int) at ~/OpenFOAM/OpenFOAM2.2.0/src/OSspecific/POSIX/signals/sigFpe.C:117
#2 in "/lib/x86_64linuxgnu/libc.so.6"
#3 Foam::GAMGSolver::scale(Foam::Field<double>&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, unsigned char) const at ~/OpenFOAM/OpenFOAM2.2.0/src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/GAMGSolverScale.C:57 (discriminator 1)
#4 Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMatrix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const at ~/OpenFOAM/OpenFOAM2.2.0/src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/GAMGSolverSolve.C:297
#5 Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ~/OpenFOAM/OpenFOAM2.2.0/src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/GAMGSolverSolve.C:99
#6 Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ~/OpenFOAM/OpenFOAM2.2.0/src/finiteVolume/fvMatrices/fvScalarMatrix/fvScalarMatrix.C:164 (discriminator 1)
#7 Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ~/OpenFOAM/OpenFOAM2.2.0/src/finiteVolume/lnInclude/fvMatrixSolve.C:81
#8
at ~/OpenFOAM/OpenFOAM2.2.0/applications/solvers/multiphase/my_interFoam/LTSInterFoam/../pEqn.H:37 (discriminator 1)
#9 __libc_start_main in "/lib/x86_64linuxgnu/libc.so.6"
#10
at ??:?
Floating point exception (core dumped)
