SST K omega turbulence model
Hi
I want to apply SST K omega turbulence model (menter 1994) in my code. in Omega equation it has one term that called 'cross diffusion term'. I don't know how to discretize this equation. in that paper Menter recommended a linearization but I can't understand it (zonal two equation KOmega turbulence model for aerodynamic flow, Menter, 1993, formula 27 & 28). Does any one know what should I do? thanks a lot 
Did you try looking at other resources for clues. Here's a link to NASA's website on turbulence models. http://turbmodels.larc.nasa.gov/sst.html
I hope it can be helpful to you. 
Dear Eezyville
thanks for your advice. yes I did. but in that site nothing was said about discritization of cross diffusion term of this model. as I said in the paper of Menter recommended a way but I can't understand it. 
mb.pejvak,
If you are already computing the partial derivatives of k and omega with respect to x_j to solve Eqns. (5) and (6) from Menter 1994, then why not simply multiply them to compute your crossdiffusion term? Out of curiosity, what is your motivation for implementing the Menter SST model yourself instead of using preexisting software (e.g. openFoam)? Zachariah 
cross diffusion term
Check the code freecfd. It is a free c++ code in which cross diffusion term has been implemented. It is in the rans module. Code is not very difficult to understand

Dear Zachariah
I can't understand what you mean. but if you said that I should multiply derivation of k to omega I know that, but I want to descritize it with finite volume and with using of Green law a logarithmic function will be earned and it's impossible to apply this term implicitly. and about your another question I want apply this turbulence model in self developing code and It has good answer in laminar flow and I want to use it in turbulent regime. Mehdi 
Dear lalupp
thanks for your helping, but I couldn't find that code you recommended. could you please give me its address or name of site that it is there? Mehdi 
Cross diffusion term
Pls see http://www.freecfd.com/ register and download

Medhi,
Thank you for clarifying. I had assumed that you were using a finite difference method. 
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