DPM setting of Time Scale Constant

March 15, 2004, 09:14

Hi.

The Time Scale Constant or the C_L is default 0.15 for the K-e turbulence model.

If one sets this to 0.015, the particle pattern is much less turbulent. The manual says that this constant is not well known, but the solution is very sensitive to the parameter. Does anyone know how to choose this value, or know of any references. And what do You do. Just use the default value or???

Christian

March 19, 2004, 19:38

Hi,

from what i read it is better to keep it this way. better use the default value

regards

David

March 15, 2004, 09:14	DPM setting of Time Scale Constant	#1
Christian Guest Posts: n/a	Hi. The Time Scale Constant or the C_L is default 0.15 for the K-e turbulence model. If one sets this to 0.015, the particle pattern is much less turbulent. The manual says that this constant is not well known, but the solution is very sensitive to the parameter. Does anyone know how to choose this value, or know of any references. And what do You do. Just use the default value or??? Christian

March 19, 2004, 19:38	Re: DPM setting of Time Scale Constant	#2
David Guest Posts: n/a	Hi, from what i read it is better to keep it this way. better use the default value regards David

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