k and epsilon diverging in MRFSimpleFOAM

shyam · April 8, 2013, 07:34

Hi Foamers,
I have a problem of k and epsilon not converging in MRFSimpleFoam. The following are some of the things i tried to make it converge but in vain.
i. changed the fvSchemes from Gauss limitedLinearV 1 to Gauss linearUpwind
ii. changed the fvSolution nNonOrthogonalCorrectors 1; (from 0 to 1).
iii. solved laminar for few hundred iterations at lower speed. increased the speed in stepwise with k-e on.
iv.Changed the initial values of k and epsilon.

None of them gave the convergence of k and epsilon. I am attaching my fvSolution/fvSchemes/k and epsilon files for your reference. Please let me know if I am doing any blunder. Any help in convergence, would be of great help.

simt · April 8, 2013, 08:03

Have you tried Gauss upwind for the divergence terms for k and epsilon? TVD schemes for k and epsilon always diverge for me.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
SimpleFoam k and epsilon bounded	nedved	OpenFOAM Running, Solving & CFD	16	March 4, 2017 08:30
Calculation of k and epsilon freezes	Nigirim	OpenFOAM Running, Solving & CFD	1	November 14, 2012 07:52
epsilon and K blowing up.	sivakumar	OpenFOAM Running, Solving & CFD	1	October 25, 2012 04:50
MRFSimpleFOAM goes divergenced!	renyun0511	OpenFOAM Running, Solving & CFD	0	November 19, 2009 02:11
SimpleFoam k and epsilon bounded	nedved	OpenFOAM Running, Solving & CFD	1	November 25, 2008 20:21

April 8, 2013, 08:03		#2
simt Member Join Date: Apr 2013 Posts: 32 Rep Power: 14	Have you tried Gauss upwind for the divergence terms for k and epsilon? TVD schemes for k and epsilon always diverge for me.