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

Low Inlet Turb. Intensity - SST model not converge

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 12, 2005, 02:26
Default Low Inlet Turb. Intensity - SST model not converge
  #1
Pete
Guest
 
Posts: n/a
Hi,

I'm simulating flow in a diffusing bend. The inlet turbulent intensity that I measured from exp is only 0.5%. However, I found it very difficult to converge using such a low TI in SST model (residuals flat at 10^-3 for 1000 steps). I have to set TI as high as 3% to get the solution to converge to 10E-6.

Anyone know how to modify the parameters in SST model to improve the convergence?

Thanks,Pete
  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
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
Understanding k-omega SST model source code tmhonka OpenFOAM Programming & Development 1 September 8, 2009 07:33
How to model Low Reynolds Turbulent in SST K-omega asghari FLUENT 0 August 18, 2007 03:31
jet oscillation at low inlet Re wood Main CFD Forum 1 October 21, 1999 13:45
a low Re number model for impinging jets mahesh prakash Main CFD Forum 14 September 3, 1999 16:40


All times are GMT -4. The time now is 09:53.