[aerothermal]

Dear All,

My mutWallFunction was working properly to simulate the flow around a cylinder with heat transfer but the mutRoughWallFunction was giving Float Point Exception..... So I found the fix and am sharing with you here because I have seen some posts about this subject.

in "/opt/openfoam171/applications/bin/linux64GccDPOpt/rhoSimpleFoam"
Floating point exception

in RASProperties

RASModel       kOmegaSST;
turbulence    on;

in boundary condition mut file

    cylinder
    {
        type            mutRoughWallFunction;
        value           uniform 0.0;
	Ks 		uniform 0.24;
	Cs 		uniform 0.5;
    }

I found the fix for the issue. It is more related to run-time execution than models, parameters or inputs. You need to code in terminal where you are running OpenFOAM:

unset FOAM_SIGFPE

or

export FOAM_SIGFPE=false

http://www.cfd-online.com/Forums/ope...exception.html

http://www.cfd-online.com/OpenFOAM_D...tml?1201770596

Regards,