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Old   February 17, 2010, 13:03
Question Low Re turbulent model
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Cora F
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Hi all,

I'm working on a low Re (~220000), low AR (~1.5-2) MAV model, and I'm now confused with which turbulent model to use.

I realise that if I want to use k-epsilon and k-omega, I will need Y+ to be about 30, while if I use k-omega with the transitional flows option enabled, I will need Y+=1. So I want to decide which is a better model for my case before generating the grid.

Could anyone give me a hint and recommend a good book on this? There are also some variants of both models, please could someone explain their differences (or are they just much the same)?

xxxx
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Old   February 18, 2010, 03:17
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Svetlin Philipov
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Refer to the UG... in Fluent use TUI (text user interface) from there you can find more turbulent models....
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Old   February 18, 2010, 08:50
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Quote:
Originally Posted by Philipov View Post
Refer to the UG... in Fluent use TUI (text user interface) from there you can find more turbulent models....
I acutally read the UG before I post the question: Nothing much says about which model is better for low Re. The only reference to Re is that k-omega can be used for both high and low Re situations.
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