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

CONVERGENCE HELP

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 12, 2008, 13:12
Default CONVERGENCE HELP
  #1
giogio
Guest
 
Posts: n/a
I study a 3d turbulent flow, I have a porous media and a flow with swirl, i have problem with convergernce with a 2nd order discretization ( PRESTO is suggested by Fluent wit a model with a porous media, I use a k epsilon standard model with standard wall function (I have dimensions of the order of meter)and a pressure based. I try to remake my mesh, changing relaxation factors, initialing wit a good solution but convergence doesn't get better(Residuals are about 10^-3 for continuity and 10^-4 for others parameters). Can you give me any suggestions (multigrid parameters....?

Thanks

Soryy for my English (I'm italian).
  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
URF and convergence in natural convergence Marie-Anne Main CFD Forum 11 September 11, 2009 10:07
convergence vijay FLUENT 6 February 1, 2006 04:04
convergence vijay Main CFD Forum 1 January 30, 2006 14:13
too bad convergence Davoche Main CFD Forum 2 November 20, 2005 06:08
About convergence LQ CFX 3 June 2, 2005 23:43


All times are GMT -4. The time now is 06:07.