k-omega turbulence model in ABLConditions

cedrik · September 17, 2014, 06:17

Hi, I'am trying to perform wind simulation on buildings.
I use the "turbineSitting" tutorial. Since I was reading documentation about turbulence model, I read that k-omega turbulence model is more "true" than k-epsilon model near walls.
So I wonder if I can use k-omega model in ABLConditions and, if yes, what kind of boundary condition could I put on the inlet in the omega file in 0.org folder?
Thanks for your help,
Cedric

jherb · October 29, 2014, 08:32

Have look look at the SST turbulence model: It is k-epsilon in the "middle" of the flow and k-omega near the walls.

September 17, 2014, 06:17	k-omega turbulence model in ABLConditions	#1
cedrik New Member Cedric Join Date: Jun 2014 Location: France Posts: 16 Rep Power: 12	Hi, I'am trying to perform wind simulation on buildings. I use the "turbineSitting" tutorial. Since I was reading documentation about turbulence model, I read that k-omega turbulence model is more "true" than k-epsilon model near walls. So I wonder if I can use k-omega model in ABLConditions and, if yes, what kind of boundary condition could I put on the inlet in the omega file in 0.org folder? Thanks for your help, Cedric

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October 29, 2014, 08:32		#2
jherb Senior Member Joachim Herb Join Date: Sep 2010 Posts: 650 Rep Power: 22	Have look look at the SST turbulence model: It is k-epsilon in the "middle" of the flow and k-omega near the walls.