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

HELP !In relaxtion factor converge is taken or not

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 16, 2005, 05:52
Default HELP !In relaxtion factor converge is taken or not
  #1
MANOJ KUMAR
Guest
 
Posts: n/a
hi i doing combustion problem. it converge but at the low solution parameter means relaxtaion factor.it taken or not. i started at low value like pressure,energy,tarbulent,and moment and going to default value but in some case like energy it converge at low value but other converge at default vale is this converge is taken or not. please help
  Reply With Quote

Old   September 16, 2005, 08:38
Default Re: HELP !In relaxtion factor converge is taken or
  #2
Manoj Kumar
Guest
 
Posts: n/a
Hi

You are able to reach convergence of residuals, isn't it? If so, then whats the problem?

Regards,

Manoj
  Reply With Quote

Old   September 17, 2005, 08:20
Default Re: HELP !In relaxtion factor converge is taken or
  #3
MANOJ KUMAR
Guest
 
Posts: n/a
thanks for reply but convrge at lower than default value is it accept ? it converge but the flue gas temperature is so high. the temperature of combustion at nozzle is 3700 K and flue gas is 3500 K so it is accept as converge solution or not

  Reply With Quote

Old   September 18, 2005, 14:41
Default Re: HELP !In relaxtion factor converge is taken or
  #4
Manoj Kumar
Guest
 
Posts: n/a
Yes. Convergence at lower than default value is acceptable. I would suggest you to go though fluent guide or any text to understand what under-relaxation is.

As far as accuracy of your results are concerned, that is dependent on the flow model and other algorithms that u select , as well as on the grid size and parameters that you input.

Manoj
  Reply With Quote

Old   September 20, 2005, 06:18
Default Re: HELP !In relaxtion factor converge is taken or
  #5
MANOJ KUMAR
Guest
 
Posts: n/a
Thanks for reply Can u please give me ur e-mail so i can give detail description of my problem.
  Reply With Quote

Old   September 22, 2005, 05:16
Default Re: HELP !In relaxtion factor converge is taken or
  #6
Manoj Kumar
Guest
 
Posts: n/a
U can mail me at manoj.me@gmail.com
  Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
relaxtion delta Andrew Hayes Main CFD Forum 0 December 7, 2005 09:45


All times are GMT -4. The time now is 08:29.