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

porous media

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 23, 2001, 05:35
Default porous media
  #1
Bjorn
Guest
 
Posts: n/a
Hello,

I'd like to do some investigation on an air filter which produces a very low pressure drop. This filter is used on a combustion engine.

The simple "alpha-beta"-model does not fit because ((alpha*U+beta)*L)/(rho*U) >> 1 is not satisfied. In my case the left side of the equation above is around 5.

So I think I have to use sormom.f. Is there anybody out there who has experience with this subroutine and could provide some tips.

Thanks for help!
  Reply With Quote

Old   March 8, 2001, 11:59
Default Re: porous media
  #2
Mike
Guest
 
Posts: n/a
Bjorn,

I have used the sormom.f routine. I agree that you should probably use the sormom routine. If you have used other user subroutines, this one is implemented in the same way. Specifically, the sormom routine can be programmed to whatever you want as the momentum equations. In my version 3.10 Methodology manual pages 8-7 and 8-8 it tells you what you should program as S1 and S2. (That would be equations 8-20 and 8-21 OR 8-22 and 8-23.) I hope you are using the same version and have access to the manual. If not, let me know. Hope this helps.

-Mike
  Reply With Quote

Old   March 30, 2001, 07:38
Default Re: porous media
  #3
Bjorn
Guest
 
Posts: n/a
Hello Mike,

I started using sormom.f a couple of weeks before I got your massage. It did not make any trouble and the results were also good.

However, thanks for your help!

Bjorn
  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
Free media&porous media.Big changes in properties. Isi Main CFD Forum 1 July 14, 2008 08:18
porous media mikezhang Phoenics 2 September 21, 2002 22:10
Porous baffle and porous media Jan Siemens 0 June 8, 2002 10:23
Porous media James Hampson FLUENT 1 January 12, 2001 13:29
Porous media Alberto FLUENT 4 July 20, 2000 06:47


All times are GMT -4. The time now is 05:35.