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

Porous domain set-up from single pressure loss value

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 8, 2011, 09:53
Default Porous domain set-up from single pressure loss value
  #1
siw
Senior Member
 
Stuart
Join Date: Jul 2009
Location: Portsmouth, England
Posts: 733
Rep Power: 25
siw will become famous soon enough
Hi,

For porous domain modelling I usually have a table and graph of volumetric flow rate (Q) vs. pressure loss (dp). From the quadratic equation of the graphed data I can get the 2 coefficients for CFX.

However, for a current task I only have a single value of dp at a single Q which was experimentally recorded. How can I set up a CFX porous domain with this limited amount of data? I have the actual geometry of the porous domain which has a rectangular cross-section and a thickness. Experimental work will definitely not be done to get more data and to be able to make a graph of Q vs. dp.

The aim of the simulation is to visualise the flowfield inside the device which also includes the porous domain.

Thanks
siw is offline   Reply With Quote

Old   December 8, 2011, 16:36
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,702
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
Have a look at the porous flow equations, and maybe some academic papers on porous flow. You will probably be able to evaluate all the coefficients even though you only have one point as the porous flow curve should be known.
ghorrocks is offline   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
Interface between fluid domain and porous domain windhair CFX 6 May 10, 2018 14:26
How to choose or find Permeability for a Porous screen model using darcy's law.... arunraj CFX 4 September 27, 2011 00:20
Pressure Loss dependet on Flow Direction MichaelN CFX 2 June 5, 2011 11:22
Momentum source / porous loss ijk CFX 5 May 20, 2011 10:30
Porous region set braket FLUENT 4 November 18, 2010 02:09


All times are GMT -4. The time now is 08:29.