CFD Online Logo CFD Online URL
Home > Forums > FLUENT

how to make solution converge in supersonic flows

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

LinkBack Thread Tools Display Modes
Old   November 20, 2007, 04:31
Default how to make solution converge in supersonic flows
Posts: n/a
dear all:

i am currently using FLUENT to simulate external compressible transonic/supersonic flows. Coupled solution was chosen and Courant number needs to be set. Does anybody knows whether there are any tricks or techniques to define the parameters such as Courant number, relaxation factors etc. to make the residual decrease and solution converge?

Thank you so much in advance.

  Reply With Quote

Old   November 21, 2007, 06:46
Default Re: how to make solution converge in supersonic fl
Posts: n/a

I think you can enter: Solve->controls->limits to adjust the limits to some suitable value. It maybe helpful for your convergence.

Also you can use smaller Courant number and observe the residence curve. Hope this can help you.

good luck.
  Reply With Quote

Old   November 27, 2007, 16:41
Default Re: how to make solution converge in supersonic fl
Posts: n/a
try density based solver...(than pressure based one)...this work better for shock prediction in transonic and supersonic fluent version having this option.....gud luck...
  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
Numerical Solution of the Blunt Body in Supersonic Flow Problem andres17 Main CFD Forum 17 February 28, 2015 16:20
how to converge solution nareshnkk Main CFD Forum 0 October 13, 2010 04:14
What to do if solution doesn't converge Sharon FLUENT 1 February 15, 2007 01:40
a way to make lots of money quick and easy no lies Dob Main CFD Forum 0 October 10, 2006 16:45
STAR-CD and internal supersonic flows Bart Prast Main CFD Forum 22 December 10, 1999 17:38

All times are GMT -4. The time now is 00:07.