CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > Siemens > STAR-CD

Heat Transfer in Porous Medium

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

LinkBack Thread Tools Search this Thread Display Modes
Old   September 28, 2010, 13:14
Default Heat Transfer in Porous Medium
New Member
Emily Ryan
Join Date: Sep 2010
Posts: 2
Rep Power: 0
eryan is on a distinguished road
I am modeling heat transfer through a porous medium and am having trouble getting the solution to converge. The heat transfer is part of a more complicated model that includes multiple reacting species, and electric potential calculated based on a Butler-Volmer formulation in posdat.f. Heat transfer is being added to the model which currently runs and converges. I am not using the conjugate heat transfer model and am wondering if that could make the difference.

If, anyone with more experience modeling porous media and heat transfer in Star could give me suggestions on how to improve convergence it would be greatly appreciated.

P.S. I have played with the relaxation factors for heat transfer and currently have them set very low, 0.1. Also I tried changing the alpha and beta terms in the porous medium model to see how that affects things, and found not much difference in convergence.
eryan is offline   Reply With Quote


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
heat transfer in porous medium (ground source heat pump) nms Phoenics 3 February 16, 2010 04:19
Convective / Conductive Heat Transfer in Hypersonic flows enigma Main CFD Forum 2 November 1, 2009 22:53
Conjugate heat transfer problem with porous media piko Siemens 1 April 17, 2009 15:41
Heat transfer from porous medium to fluid Ralf Schmidt FLUENT 1 October 30, 2005 06:21
Convective Heat Transfer - Heat Exchanger Mark CFX 6 November 15, 2004 15:55

All times are GMT -4. The time now is 00:12.