CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

K-e to RSM

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 14, 2005, 04:20
Default K-e to RSM
  #1
venkatesh
Guest
 
Posts: n/a
hi everybody,

1)i am working on a complex flow domain, i have well converged results for K-e model. RSM was unstable if start directly with it. As per fluent manual i started with K-e and changed to RSM after few hunderd iterations now i have Turbulent viscocity ratio going above 10^5 in some cell, and residual plot vibrates a lot particularly epsilon. will this affect the results. URF is low as specified in the manual. or can i use the well converged result of k-e for RSM.

2)i have well converged results for k-e model. when i check the fluxes (mass flow rate) at inlet and outlet for my domain i have 3 cases 1) exactly zero 2) positive 10^-6 3) negative 10^-6 can anybody explain all the 3 cases particularly third case(how it can be negative?) which one would be best expected one?

thanks venkatesh
  Reply With Quote

Reply

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
BSL RSM or SSG RSM Far CFX 15 March 20, 2014 22:34
Incompressible, Low Re RSM ivan_cozza OpenFOAM Running, Solving & CFD 0 June 9, 2009 05:08
RSM model Eric Wang CFX 1 January 7, 2009 08:55
about RSM and k-'3' (sorry cant type it) models Hao FLUENT 0 April 28, 2008 09:14
RSM divergence Steve FLUENT 2 September 28, 2004 15:36


All times are GMT -4. The time now is 05:55.