Foam-extend-3.1 + kOmegaSST Problem

lentschi · October 29, 2014, 10:41

Hello,

starting a calculation with the kOmegaSST model in Foam-extend-3.1 leads to the followign error:

Selecting incompressible transport model Newtonian
Selecting RAS turbulence model mykOmegaSSTSAS
--> Upgrading k to employ run-time selectable wall functions
Backup original k to k.old
Writing updated k
--> Upgrading omega to employ run-time selectable wall functions
Backup original omega to omega.old
Writing updated omega
--> Creating nut to employ run-time selectable wall functions
Writing new nut
Floating point exception

On the other hand, calculations with kOmega and kEpsilon work!

Has anyone experiences with this problem?

Regards,
Markus

hjasak · October 30, 2014, 03:23

Smells like a bug - can you share the case? I'd like to have a look.

Hrv

philippose · October 30, 2014, 07:22

Hello,
I have used kOmega SST with simpleFoam on foam-extend-3.1 without
any problems.

It rewrites the turbulence related files (k, omega, nut) to the new format,
and the simulations run as expected.

Maybe there is some other factor playing a role in your case.

Philippose

October 29, 2014, 10:41	Foam-extend-3.1 + kOmegaSST Problem	#1
lentschi Member sirLentschi Join Date: Nov 2010 Posts: 87 Rep Power: 16	Hello, starting a calculation with the kOmegaSST model in Foam-extend-3.1 leads to the followign error: Selecting incompressible transport model Newtonian Selecting RAS turbulence model mykOmegaSSTSAS --> Upgrading k to employ run-time selectable wall functions Backup original k to k.old Writing updated k --> Upgrading omega to employ run-time selectable wall functions Backup original omega to omega.old Writing updated omega --> Creating nut to employ run-time selectable wall functions Writing new nut Floating point exception On the other hand, calculations with kOmega and kEpsilon work! Has anyone experiences with this problem? Regards, Markus

October 30, 2014, 03:23		#2
hjasak Senior Member Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,907 Rep Power: 33	Smells like a bug - can you share the case? I'd like to have a look. Hrv __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk

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October 30, 2014, 07:22		#3
philippose Senior Member Philippose Rajan Join Date: Mar 2009 Location: Germany Posts: 552 Rep Power: 25	Hello, I have used kOmega SST with simpleFoam on foam-extend-3.1 without any problems. It rewrites the turbulence related files (k, omega, nut) to the new format, and the simulations run as expected. Maybe there is some other factor playing a role in your case. Philippose