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

Flow in porous medium

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 30, 2008, 16:45
Default Flow in porous medium
  #1
Saba
Guest
 
Posts: n/a
Hi,

I'm modeling heat flow in a wall cavity filled with porous insulation material. I'm using a laminar model and I'm using fixed exterior and interior boundary conditions. The results give the maximum velocity in the cavity to be very small (about 4e-4).

I'm thinking the problem might be due to the Inertial Resistance factor which I don't have and I don't have the experimental results of velocity and pressure values to get this coefficient. I'm wondering if this is a critical thing in the modeling? I'm leaving it as 0 now. When I change this value to some random number (e6), it effect my results very slightly.

I appreciate your help with this,

Saba
  Reply With Quote

Old   October 2, 2008, 02:36
Default Re: Flow in porous medium
  #2
chandra manik
Guest
 
Posts: n/a
You are absolutely right Saba. I performed the calculation in perforated wall before where the spesific pressure drop versus the flow capacity should be applied. So you have to make some experiences with this or you can use the formulation from what you can find in the Fluent Manual. But for me, the pressure drop and flow capacity test data is the best way to have satisfaction result.

  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
Flow through porous medium Kiran AS FLUENT 6 September 16, 2011 07:38
Porous medium flow shailesh OpenFOAM Running, Solving & CFD 8 September 14, 2007 05:18
Flow through porous medium Kiran AS Main CFD Forum 1 August 31, 2006 08:12
gas flow through porous medium Shankar FLUENT 0 February 18, 2002 22:18
flow through a porous medium Vangelis Skaperdas Main CFD Forum 1 March 24, 1999 04:24


All times are GMT -4. The time now is 22:27.