|August 16, 2012, 08:44||
Coefficients of Launder-Sharma k-epsilon model
Join Date: Feb 2010
Location: Ulsan, Republic of Korea
Posts: 27Rep Power: 7
Can the coefficients used in LS k-epsilon model be varied?
For example, if I modify the Ce2 coefficient from 1.92 to 1.88, is it acceptable?
What I'm suffering now is that while I try to simulate a supersonic flat plate using ARSM based on LS k-epsilon model, the results agree well to experimental results if I set up the coefficient Ce2 as 1.88 rather than 1.92 which is originally proposed.
When I set up the Ce2 as 1.92, it over-predicts the friction velocity and production term is too large that provides higher turbulent kinetic energy level.
Is there anyone who suffers from similar problem?
|Thread||Thread Starter||Forum||Replies||Last Post|
|Low Reynolds K Epsilon Launder Sharma Model Functions Doubt...||RSilva||Main CFD Forum||17||February 17, 2014 10:52|
|Wall functions for near wall treatment : k - epsilon model||fivos||Main CFD Forum||4||April 27, 2011 07:44|
|Implement new Turbulence Model||sven||OpenFOAM||0||July 19, 2009 15:47|
|Launder & Sharma model in combusion case||Richard Carroni||Main CFD Forum||1||November 17, 1998 19:59|