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

Energy convergence

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 19, 2001, 00:12
Default Energy convergence
  #1
Ashutosh
Guest
 
Posts: n/a
I have a conjugate heat transfer problem where the thermal conductivity of the materials is very different ( 0.1 W/m-K to 50000W/m-K). Will these values create problem in energy convergence? If yes, what solution parameter settings can remove it.

Ashutosh
  Reply With Quote

Old   March 23, 2001, 06:25
Default Re: Energy convergence
  #2
Martin
Guest
 
Posts: n/a
Hi Ashutosh. I'm currently investigating a problem maybe similar to yours and have experienced problems with the convergence of the thermal solution. I'm modelling heat transfer inside an electrical machine. Several parts, such as laminated rotor cores or insulated copper windings, have layers of insulation with low conductivity (0.3W/mK) between steel (30W/mK) or copper (400W/mK). So I have to model anisotropic conductivity (or orthotropic) if I don't want to model all the thin layers separately. So far I have had severe troubles to decrease the conductivity to less than 30-40% of conductivity in other two directions. I'm expecting Fluent Europe to get back to me on this.

Regards, Martin

  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
Convergence Centurion2011 FLUENT 24 May 9, 2015 08:02
Force can not converge colopolo CFX 13 October 4, 2011 22:03
SIMPLE and energy equation convergence Fabio Main CFD Forum 0 June 1, 2007 06:06
Convergence problem for P1 & Energy HP FLUENT 5 May 21, 2005 15:01
Energy equation convergence problem Reza Main CFD Forum 0 August 27, 2003 13:09


All times are GMT -4. The time now is 01:58.