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-   -   K-epslion Vs. Realizable K-epsilon. Emergency!! (http://www.cfd-online.com/Forums/openfoam-solving/109995-k-epslion-vs-realizable-k-epsilon-emergency.html)

MOHAMMAD67 December 2, 2012 14:02

K-epslion Vs. Realizable K-epsilon. Emergency!!
 
Dear Foamers
Hi
I have a problem in using K-epsilon model. I'm simulating free surface flow using interFoam. All my models with k-epsilon crashes and make me to use realizable k-e. Fortuately it works well. Now I'm confused what makes it happen?!! Why does k-e become unstable while realiz. works without any problem?

The King December 2, 2012 15:14

k -epsilon should work. RNG k-epsilon has an additional term for heavy strained flows, swirling flows and you can use it as a low Reynolds model (no wall functions).


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