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-   -   Reynolds stress calculation from k-epsilon model (http://www.cfd-online.com/Forums/cfx/26754-reynolds-stress-calculation-k-epsilon-model.html)

Sae woong Kil December 2, 2008 20:44

Reynolds stress calculation from k-epsilon model
 
Hi I got a result using k-epsilon model. I am trying to calculate Reynolds stress from the result. How can I get the x, y, z fluctuating component from kinetic turbulence energy variable?

Adam December 4, 2008 06:44

Re: Reynolds stress calculation from k-epsilon mod
 
You'll need to run with the reynolds stress model.

Glenn Horrocks December 4, 2008 18:59

Re: Reynolds stress calculation from k-epsilon mod
 
Hi,

You can estimate the Reynolds stresses from a k-e result. You assume all the Reynolds stresses are equal then the two turbulence parameters fully define the turbulence. Look in any turbulence textbook for the derivation (Turbulence modelling for CFD by Wilcox is the one I use).

Glenn Horrocks


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