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

Help conjugate heat transfer small enclosure

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

Like Tree1Likes
  • 1 Post By Héctor Lodoso

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 21, 2016, 05:31
Default Help conjugate heat transfer small enclosure
  #1
New Member
 
Héctor Lodoso
Join Date: Oct 2015
Location: Spain
Posts: 15
Rep Power: 11
Héctor Lodoso is on a distinguished road
Hi all,

I am dealing with a conjugate heat transfer problem for electronics cooling in a very small domain (compartment or enclosure) in FLUENT, with quite a complex geometry, and I am a little bit stagnated.

I have been fighting with the mesh for a long time, and I think all problems related with skewness and quality are already solved. Also interfaces are correct. Still, I am having troubles for convergence.

I suspect the problem is, as it is such a small domain, that a very high gradients for temperature and turbulence variables can be found at the outlet. However, I would like to avoid to extrude it farther out of the compartment...

My outlet is, in a first approuch, a pressure-outlet.

¿Any idea on how could I treat this situation?

I would appreciate very much any guess.

Thanks!
shlover119 likes this.
Héctor Lodoso is offline   Reply With Quote

Old   December 21, 2016, 14:30
Default
  #2
Senior Member
 
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,756
Rep Power: 66
LuckyTran has a spectacular aura aboutLuckyTran has a spectacular aura aboutLuckyTran has a spectacular aura about
Size shouldn't be an issue.

Electronics cooling is generally laminar flows; large gradients and turbulent flows are extremely rare. Are you sure the problem is as tough as you make it seem?
LuckyTran is offline   Reply With Quote

Old   January 12, 2017, 12:51
Default
  #3
New Member
 
Héctor Lodoso
Join Date: Oct 2015
Location: Spain
Posts: 15
Rep Power: 11
Héctor Lodoso is on a distinguished road
Quote:
Originally Posted by LuckyTran View Post
Size shouldn't be an issue.

Electronics cooling is generally laminar flows; large gradients and turbulent flows are extremely rare. Are you sure the problem is as tough as you make it seem?
Thanks for the reply LuckyTran. Actually it wasnt the problem.
__________________
Best regards!
Héctor Lodoso
Héctor Lodoso is offline   Reply With Quote

Reply

Tags
cht, conjugate heat transfer, fluent, outlet, small domain

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
Conjugate Heat Transfer for electric machine AlexRonto CFX 9 January 27, 2017 08:55
heat flux on solid surface in conjugate heat transfer skuznet OpenFOAM Pre-Processing 0 December 10, 2013 01:36
Convective / Conductive Heat Transfer in Hypersonic flows enigma Main CFD Forum 2 November 1, 2009 23:53
Conjugate heat transfer problem hvem10 FLUENT 2 October 29, 2009 18:31
Conjugate heat transfer (vs) periodic boundary mp FLUENT 1 January 13, 2003 02:38


All times are GMT -4. The time now is 15:30.