k-epsilon model for compressible flow
 

I'm using k-epsilon for compressible flow. I can only find the k-epsilon equations for incompressible flow in the fluent manual. Does anyone know where to find the compressible equations (favre average)? Thanks

Craig

Re: k-epsilon model for compressible flow
 

i think the fluent manual mentions the compressiblity correction for compressible flow. if you look at the transport equations you will find this factor there.

Re: k-epsilon model for compressible flow
 

I've read the fluent manual to death. I can't find these compressible factors you talk about. Do you know where in the manual they are?

Re: k-epsilon model for compressible flow
 

Quote from fluent (6.2) manual chapter 11.4.1:

(in the transport euqation for k) "YM represents the contribution of the fluctuating dilatation in compressible turbulence to the overall dissipation rate"

Re: k-epsilon model for compressible flow
 

exactimo

Re: k-epsilon model for compressible flow
 

Thanks guys. I had the 6.1 manual, I got the new one now.

Hey Guys,

for those who aren´t using Fluent: Where can I find the k-epsilon model equations for Compressible Flows?

I have checked Wilcox´s Turbulence Modeling, but he only gives the k-omega model equations...
(Probably because its his baby :D)