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

porosity

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 10, 2007, 03:51
Default porosity
  #1
ravi
Guest
 
Posts: n/a
Hi to all. can anyone tel me how to use porosity option.. in my problem i know only porosity.. can i give the value of the porosity with physical velocity formulation without specifying the inertial coefficients (C2). does it give correct results.. i need to find the pressure drop across the porous zone. plz let me know.. thanks in advance
  Reply With Quote

Old   December 10, 2007, 04:14
Default Re: porosity
  #2
Nuray Kayakol
Guest
 
Posts: n/a
You need to give pressure drop coefficents. Delta P = 1/2 *friction factor*rho*U(min )
  Reply With Quote

Old   December 13, 2007, 20:50
Default Re: porosity
  #3
Chee Onn
Guest
 
Posts: n/a
Hi,

it is better that you find the pressure drop across the porous zone, ie. delta P vs vel. You may refer to fluent manual in order to calculate the inertial coefficient C2 and viscous coefficient 1/alpha.
  Reply With Quote

Reply


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
Problem in setting porosity region for rhoPorousSimpleFoam run_cfd OpenFOAM Pre-Processing 1 May 31, 2011 09:02
Porosity field in Fluent wojciech FLUENT 1 September 20, 2010 11:19
Volume porosity as function of temperature Georg CFX 0 October 15, 2008 05:06
UDF for porosity Giacomo FLUENT 3 July 23, 2007 09:23
porous media with variable porosity Kevin A. FLUENT 3 December 24, 2006 10:56


All times are GMT -4. The time now is 08:52.