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K-epslion Vs. Realizable K-epsilon. Emergency!!

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Old   December 2, 2012, 14:02
Default K-epslion Vs. Realizable K-epsilon. Emergency!!
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Mohammad Fereshtehpour
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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?
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Old   December 2, 2012, 15:14
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Arnout
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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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