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August 19, 2004, 14:44 |
K-omega model
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#1 |
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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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August 19, 2004, 18:06 |
Re: K-omega model
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#2 |
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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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August 20, 2004, 16:19 |
Re: K-omega model
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#3 |
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Thanks for the info. I do not have any experimental data as of now.
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August 22, 2004, 20:02 |
Re: K-omega model
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#4 |
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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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