CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   CD-adapco (http://www.cfd-online.com/Forums/cd-adapco/)
-   -   heat transfer in porous media (http://www.cfd-online.com/Forums/cd-adapco/55942-heat-transfer-porous-media.html)

Miko March 22, 2007 15:47

heat transfer in porous media
 
Is there anyone with experience in simulation of heat transfer in porous media with STAR-CD?

We are working on a project to simulate a heat exchanger with a less complex model in STAR-CD. The idea is to replace the turbulators in the oil cooler by porous media.

We have so far determined the coefficients for the pressure drop by experimental data. So the pressure field as well as the velocity distribution are identical to the experiment. However, the solutions for the heat flux and temperature don't match with the experimental data. There is a higher temperature drop in the simulation then in the experiment (=> 3 to 4 times higher!!).

The problem probably relies on the setting of the thermal properties of the porous region (Effective Conductivity, Turbulent Prandtl Number). How do I have to set these values?

Thanks!!


Dave March 23, 2007 13:43

Re: heat transfer in porous media
 
Which version of STAR-CD are you using? Heat transfer in porous media is only available in V4.02.

Miko March 26, 2007 15:12

Re: heat transfer in porous media
 
I am using STAR-CD V3.26 and of course there is heat transfer in porous media available.

David March 29, 2007 10:40

Re: heat transfer in porous media
 
We use a (solid)shadow set of cells in 3.26

Bensely April 14, 2007 11:44

Re: heat transfer in porous media
 
My post graduate student is working on heat transfer studies of a porous media(copper metal foam) for his project work under my guidance.He is using fluent for this.


vahid May 24, 2007 05:12

Re: heat transfer in porous media *NM*
 


All times are GMT -4. The time now is 08:15.