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

Porosity permeability

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 6, 2004, 04:15
Default Porosity permeability
  #1
Andrea
Guest
 
Posts: n/a
Hello all.

I'm studing a 3d fuel cell model. I use cfx 4.4

I'm having some problem with porous flow. If I know the permeability value is possible calculate porosity?

Using the porous flow model setting porosity how can I guess the body forces value?

Thanks

Andrea
  Reply With Quote

Old   May 11, 2004, 01:43
Default Re: Porosity permeability
  #2
Jeff
Guest
 
Posts: n/a
The permeability <> porosity conversion is in Perry's Handbook. (I have to look it up because I can never remember it)

The resistance you can get from various references such as Idlechek, or Blevins if it is a "regular" porous material (mesh, screen, etc.). Otherwise you'll need experimental data.

Jeff
  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
How to choose or find Permeability for a Porous screen model using darcy's law.... arunraj CFX 4 September 27, 2011 00:20
Porosity field in Fluent wojciech FLUENT 1 September 20, 2010 11:19
porosity and the permearbility? poiu FLUENT 1 September 11, 2009 09:00
correct assignment of permeability? jemteo CFX 0 March 17, 2006 06:34
Permeability Porosity and Viscosity liugx212 OpenFOAM Running, Solving & CFD 0 February 28, 2006 17:15


All times are GMT -4. The time now is 03:11.