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Choosing the best turbulance model

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Old   December 10, 2014, 07:58
Default Choosing the best turbulance model
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Hi guys,

Currently i am confussed in selecting the suitable turbulance model for my project. since i am doing a project in heat exchangers. I am trying to solve pinfin model where i have lots of wall. I am confussed in selecting the right one from k epsilon, k omega, sst models. Since k epsilon exhibts large peaks near the wall. I thkin i can't use them for my project. can any suggest me a model? Is SST model works well for parts with lots of walls?

Thanks in advance,
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Old   December 10, 2014, 16:54
Default k-omega to start?
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This may be a good starting point for you: CFD Wiki

Without knowing much about your flow, I would suggest starting with k-omega or SST k-omega. The latter will use k-epsilon away from the boundary layer.

Also, I would google for research papers that have conducted similar work and validated it through experiment. I'd imagine there are a few out there.
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