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

porous wall in cfx

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 2, 2012, 08:40
Default porous wall in cfx
  #1
Member
 
bitak
Join Date: Jul 2009
Posts: 56
Rep Power: 7
bitak is on a distinguished road
hello.
I want to simulate an tube by cfx that its wall is porous.
who can help me?
bitak is offline   Reply With Quote

Old   October 2, 2012, 09:55
Default
  #2
Senior Member
 
Christoph
Join Date: May 2011
Location: Germany
Posts: 182
Rep Power: 9
energy382 is on a distinguished road
you've to put a more specific request

so start reading user manual, mesh your geometry etc....

back on topic: you have to make a porous domain, GGI (fluid/porous) and define your porosity settings (e.g. loss modell)
energy382 is offline   Reply With Quote

Old   October 3, 2012, 11:34
Default cfx porous wall
  #3
Member
 
bitak
Join Date: Jul 2009
Posts: 56
Rep Power: 7
bitak is on a distinguished road
hey.

my boundary condition is porous.
i want to know how i can simulate porous wall in cfx.
i think i need to import expression.what is your idea?
merc
bitak is offline   Reply With Quote

Old   October 3, 2012, 15:47
Default
  #4
Senior Member
 
Erik
Join Date: Feb 2011
Location: Earth (Land portion)
Posts: 486
Rep Power: 9
evcelica is on a distinguished road
Never heard of a porous boundry condition???
Maybe you mean a porous domain? Just create a domain, and in CFX choose porous domain instead of fluid or solid. Then insert your parameters which describe the porosity.
evcelica is offline   Reply With Quote

Old   October 4, 2012, 03:57
Default cfx porous wall
  #5
Member
 
bitak
Join Date: Jul 2009
Posts: 56
Rep Power: 7
bitak is on a distinguished road
i want to simulate a mass transfer blood vessel wall.
how i can start by CFX ?
you think my bondary condition for wall is porous or i should define a porous domain around vessel?
tanx
bitak is offline   Reply With Quote

Old   October 7, 2012, 10:46
Default
  #6
Senior Member
 
Chris DeGroot
Join Date: Nov 2011
Location: Canada
Posts: 387
Rep Power: 6
cdegroot is on a distinguished road
If you care about the details inside the wall, then add a porous domain and model it. If not, just formulate it as a boundary condition. I don't think you will find a "porous" boundary condition though. Think about what it is your porous boundary is supposed to represent and that should help you figure out what you need to impose as a bc. Maybe a mass source or sink?
cdegroot is offline   Reply With Quote

Old   October 7, 2012, 13:24
Default
  #7
Member
 
bitak
Join Date: Jul 2009
Posts: 56
Rep Power: 7
bitak is on a distinguished road
thanks all.
bitak is offline   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
Automatic wall treatment in CFX Chander CFX 12 March 21, 2015 10:34
mergeMeshes problem Attesz OpenFOAM Mesh Utilities 2 December 14, 2013 09:19
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
[ICEM] Export ICEM mesh to Gambit / Fluent romekr ANSYS Meshing & Geometry 1 November 26, 2011 13:11
How to Model Porous media in CFX senCFX Main CFD Forum 0 January 10, 2011 11:02


All times are GMT -4. The time now is 08:37.