CFD Online Logo CFD Online URL
Home > Forums > FLUENT

supersonic flow arround fin stabilized missile

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

LinkBack Thread Tools Display Modes
Old   December 3, 2006, 14:35
Default supersonic flow arround fin stabilized missile
jon william
Posts: n/a
Hi everyone, I facing some problems in solving a supersonic flow arround a fin stabilized missile. The iterations seems to be stable using 2nd order schemes and spallart-allmars turbulent model. sudenly, after many iterations an error occured and a message of divergant detected appeared and the iterations stops. can any one tell me why?
  Reply With Quote

Old   December 4, 2006, 10:29
Default Re: supersonic flow arround fin stabilized missile
Posts: n/a
You need to investigate the diverged solution. There was a message in the Fluent window which said which variable diverged (typically it's temperature) so you need to find where the problem is in your model. Look at the contours, make surfaces... things like that to find exactly where the problem is and try to convince yourself what's causing the problem. You should also look at the general flow field to make sure it makes sense... are shocks from your body interacting with BCs (if so, your domain is too small)... do the shocks look right and is the property change across them about right (if not, check your BCs and your material properties). Look for anything in the flow field that doesn't seem right. It could just be a localized mesh problem, or it could be something wrong with your setup. It's best to investigate as much as you can now rather than spending a lot of time re-meshing and realizing it was a setup problem.

Hope this helps, and good luck, Jason
  Reply With Quote


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
Trying to achieve supersonic flow in a pipe jpo FLUENT 15 October 26, 2015 09:03
Assistance for modelling unsteady supersonic flow in FLUENT SATISH A.V FLUENT 11 October 1, 2014 22:36
What solver to use for inviscid flow simulation over missile mecbe2002 OpenFOAM 0 April 27, 2010 11:10
Modeling Bleed in Supersonic Flow Mohd Yousuf Ali FLUENT 0 March 17, 2007 04:51
problem in initializing the flow for supersonic jon william FLUENT 0 October 30, 2006 09:16

All times are GMT -4. The time now is 23:24.