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

Particle Trapped on The Wall

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 23, 2013, 19:16
Default Particle Trapped on The Wall
  #1
New Member
 
Liliana de Luca Xavier Augusto
Join Date: Feb 2013
Posts: 23
Rep Power: 4
liliana is on a distinguished road
Hello!

I am working with particles in a unique domain. But I need to know how many particles deposit on the wall in three different portions (like if I divided my domain in three).

So, in CFD post, I created cross-section planes and calculate the mass flow of the particles using the function calculators.

But I have a problem: in some portions recircuations zones exists, so the mass flow are bigger than the real number of particles.

Anybody could help me? Anyone have an idea to divided my domain in three parts and then calculated how many particles deposition in each parts?

Thanks in advance!
liliana is offline   Reply With Quote

Old   May 23, 2013, 19:33
Default
  #2
New Member
 
Liliana de Luca Xavier Augusto
Join Date: Feb 2013
Posts: 23
Rep Power: 4
liliana is on a distinguished road
I forgot to say: I am using Eulerian-Lagrangian approach.
liliana is offline   Reply With Quote

Old   May 23, 2013, 21:35
Default
  #3
Senior Member
 
S.Bogoda
Join Date: Jul 2012
Posts: 133
Rep Power: 5
sakurabogoda is on a distinguished road
Hi,
If you assigned 3 boundaries (wall1, wall2,wall3) in CFX-pre and then you can see in out put file, there is a summary of particle tracking, "particles on wall..".
sakurabogoda is offline   Reply With Quote

Old   May 23, 2013, 21:43
Default
  #4
New Member
 
Liliana de Luca Xavier Augusto
Join Date: Feb 2013
Posts: 23
Rep Power: 4
liliana is on a distinguished road
let me see if i understood...

i have to set 3 boundary conditions in cfx-pre? i'm kind of new in CFD.. sorry!

But for this, I need to have 3 different geometries? Like 3 domains?
liliana is offline   Reply With Quote

Old   May 23, 2013, 21:55
Default
  #5
Senior Member
 
S.Bogoda
Join Date: Jul 2012
Posts: 133
Rep Power: 5
sakurabogoda is on a distinguished road
hi, If I understand your problem correctly,
in cfx-pre, you have to assign 1st domain and then boundaries under domain. there you can assign 3 walls separately.
sakurabogoda is offline   Reply With Quote

Old   May 23, 2013, 21:59
Default
  #6
New Member
 
Liliana de Luca Xavier Augusto
Join Date: Feb 2013
Posts: 23
Rep Power: 4
liliana is on a distinguished road
Okay! I think I got the idea!
I was wondering if there was another way to do this. But I can't think in another way!

I believe that the 3 domains will solve my problem!

Thanks so much, Sakura!
liliana is offline   Reply With Quote

Old   May 23, 2013, 22:06
Default
  #7
Senior Member
 
S.Bogoda
Join Date: Jul 2012
Posts: 133
Rep Power: 5
sakurabogoda is on a distinguished road
hi hi, you don't need 3 domains, you can define one domain and boundaries as,
inlet, outlet, wall1, wall2, wall3 and so on.
sakurabogoda 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
Particle tracking trapped or incomplete Abigail FLUENT 5 July 30, 2015 10:37
mergeMeshes problem Attesz OpenFOAM Mesh Utilities 3 July 29, 2015 04:15
wall surface and particle surface reactions borhan_sd@yahoo.com Main CFD Forum 0 May 22, 2013 04:48
Check particle impaction with User Fortran Julian K. CFX 3 January 12, 2012 10:46
DPM particle trapped Stefano FLUENT 5 April 8, 2008 04:25


All times are GMT -4. The time now is 22:52.