K-omega model
 

Hi, Can anyone of you please let me know where i can find more information on k-omega models (1988,98,menter sst). I want to use this model for turbulent boundary layers. what are typical values of initial k and omega. I am very new to this kind of work and so any sugessations will be immensley helpful

Re: K-omega model
 

Hi Amol,

for SST model you can check out the authors paper in AIAA journal 32, no 8, august 1994 issue.

As far as I know, the inlet values of k and w are usually obtained from experimental data. Some time its given in terms of ratio of turbulent viscosity to molecular viscosity and free stream turbulence. From this you can get k and w values for inlet.

Hope this helps.

Re: K-omega model
 

Thanks for the info. I do not have any experimental data as of now.

Re: K-omega model
 

Can you try this? It works very well in my case.

TEIN=1.5*(0.037*UIN)**2 EDIN=TEIN**0.5/(0.3*DJET)

TE is k, ED is omega and DJET is the characteristic length. The CFX-4 code uses this.

I hope this helps.

Halim Choi