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 Serge A.S. August 7, 2007 05:53

k-e turbulence model for 3D case

Hi, where I can find the full description for k-e turbulence model (in general view) for _3D_case_ ? (links, papers, etc.)

 Praveen. C August 7, 2007 09:48

Re: k-e turbulence model for 3D case

See Wilcox's book on turbulence modeling.

 Serge A.S August 7, 2007 11:47

Re: k-e turbulence model for 3D case

>See Wilcox's book on turbulence modeling.

Certainly I looked this book. There I have found only 2D (chapter 21 p54)

 agg August 10, 2007 18:12

Re: k-e turbulence model for 3D case

The idea of the K-e model is to keep things as simple as possible - to capture the turbulent energy of the large scales in the flow. It is assumed that the eddy structures breakdown and dissipate quickly. A 2D simulation does a good job of modeling this and not to mention saves memory and time for the computation as compared to a 3D simulation. I am sure you will find references in literature that tell you that the results from the 2D and 3D simulation were close for the K-e model.

 Carlos Zambra September 5, 2007 09:45

Re: k-e turbulence model for 3D case

hello I from chile. Need information the k-e turbulence model please. Thank you

 Valerio September 7, 2007 15:24

Re: k-e turbulence model for 3D case

the best books in these fields are:

Turbulence Modelling for CFD, Wilcox, DCW industries ed. (a very good & complete book on RANS models)

Anlysis of k-epsilon turbulence model, Mohammadi & Pironneau Published: March 1994 John Wiley and Sons Ltd but it's aimed at applied mathematicians interested in the numerical simulation of turbulent flows.

However you can find good pdf files online. Try on google:

Lars Davidson (Chalmers University of Techonology, Goteborg). David Apsley (UMIST - Manchester) and http://www.engr.uky.edu/~acfd/lecturenotes1.html

Good luck and good work.

Valerio

P.s.: How is Marcelo Rios?

 Carlos Zambra September 10, 2007 08:49

Re: k-e turbulence model for 3D case

Thank you for response. That opinion you have of the book of akira nakayama and of the program SAINTS that contains?. I ask because we compiled it and are doubts with respect to the mesh used for the results. Marcelo Rios is retired now one dedicates to celebrations and friends. Again thanks Carlos

 Valerio September 10, 2007 11:50

Re: k-e turbulence model for 3D case

I only hear Nakayama's book. it's orientied on enviromental fluid dynamics, isn't it? Hoever your problem is not easy. Goog luck!

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