|April 22, 2006, 04:45||
I jus implemented K-w turbulence model in my 2D solver. The implementation is in terms of logarithmic variables( following IIlnca etal.). This helps to guarantee positivity without any undue limiting on k and w. I am able to get the right results on coarse grids, but on finer grids I have problems in reproducing the right skin friction distribution, although I seem to get the pressure distribution ok. I use implicit time stepping with constant reconstruction for turbulence variables and linear reconstruction for the rest. I have directly implemented the Wilcox model, without any further modifications. If anyone has had experience in this, could you please tell about the influence of the freestream values on the solution and of any other problem on fine grids. Is it also really necessary to get a good initial guess for the probelm on fine grids ?
Any suggestions in this regard are most appreciated.
Regards and Thanks in advance,
|Thread||Thread Starter||Forum||Replies||Last Post|
|Improved implementation of dynamic Smagorinsky||alberto||OpenFOAM Running, Solving & CFD||81||June 16, 2016 11:31|
|Implementation of boundary conditions for FVM||Tom||Main CFD Forum||7||August 26, 2014 05:58|
|Implementation issues of fvSchemes / laplacianScheme, in particular gaussLaplacianSch||thomek||OpenFOAM Programming & Development||0||October 18, 2010 05:10|
|Please explain the implementation of species transport Eqn in reactingFoam||kallipygian||OpenFOAM Running, Solving & CFD||0||October 13, 2008 07:29|
|Implementation of wall function with SA model||Bala||Main CFD Forum||0||October 7, 2004 23:54|