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Old   August 19, 2004, 15:44
Default K-omega model
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amol palekar
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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
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Old   August 19, 2004, 19:06
Default Re: K-omega model
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skk99
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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.
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Old   August 20, 2004, 17:19
Default Re: K-omega model
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amol palekar
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Thanks for the info. I do not have any experimental data as of now.

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Old   August 22, 2004, 21:02
Default Re: K-omega model
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Halim Choi
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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
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