CFD Online Logo CFD Online URL
Home > Forums > FLUENT

effective viscosity in RNG k-e model

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   August 16, 2002, 17:46
Default effective viscosity in RNG k-e model
Posts: n/a
Hi, I have a question about the effective viscosity calculation:

An additional differential equation for the effective viscosity calculation is provided in the RNG k-e model, but I found that the formulation of this equation is different from the one that's given in Yakhot's paper where the origin of this model is discussed. There're 3 differences: 1) the density term doesn't appear in Yakhot's formula. 2) the coefficient is 1.7288 instead of 1.72. 3) the constant Cv is not equal to 100 in Yakhot's formula.

Could someone please explain this for me? I'd appreciate it very much.


  Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Use of k-epsilon and k-omega Models Jade M Main CFD Forum 28 November 5, 2017 23:40
turbulent viscosity in k-e model orlik Fluent UDF and Scheme Programming 1 July 19, 2017 12:27
Eddy Viscosity Transport Model Jade M Main CFD Forum 0 April 21, 2010 14:17
RNG (renormalized group) or RM(realizable model) based on K-e heidar FLUENT 0 April 17, 2010 04:21
effective viscosity in RNG k-e turbulence model Ellen Main CFD Forum 1 August 20, 2002 02:20

All times are GMT -4. The time now is 05:57.