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icoFoam error Message
I modified the dimensions of the cavity to my requirement in the blockMeshDict file.
Then ran the blockMesh file without any errors.
But upon running icoFoam, after a certain number of successful iterations I get an error message. It is as follows,

Time = 0.075

Courant Number mean: 843.929 max: 1563.48
#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::sigFpe::sigHandler(int) at ??:?
#2  ? in "/lib/x86_64-linux-gnu/"
#3  Foam::symGaussSeidelSmoother::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::symGaussSeidelSmoother::smooth(Foam::Field<double>&, 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  ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/icoFoam"
#7  ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/icoFoam"
#8  ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/icoFoam"
#9  ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/icoFoam"
#10  __libc_start_main in "/lib/x86_64-linux-gnu/"
#11  ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/icoFoam"
Floating point exception (core dumped)

How can I rectify this issue?

Thanks, in advance.

OpenFOAM-version-7 Setting-up-a-Test-Case-in-OpenFOAM 09-10 min 20-30 sec 26-02-21, 8:06 a.m. CTentre


Please check the boundary conditions and the mesh obtained using the blockMeshDict file. 
Also the increasing courant number in a measure of instability in the solution. Try reducing the time step size and see if it works. 
26-02-21, 9:41 a.m. subhamdas
Okay, will let you know once I have tried these suggestions.
Thank You!
26-02-21, 9:56 a.m. CTentre

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