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

two different two phase model

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 26, 2011, 07:10
Default two different two phase model
  #1
Senior Member
 
hamid
Join Date: Nov 2010
Posts: 185
Rep Power: 6
hamid1 is on a distinguished road
Hi
do u think its possible to use desceret particle model ( injection of water in fluid1) and vof model (fluid1 is in fluid2) at the same time in a domain ?
thank you
hamid1 is offline   Reply With Quote

Old   September 26, 2011, 10:49
Default
  #2
New Member
 
Join Date: Mar 2009
Posts: 15
Rep Power: 8
bohis is on a distinguished road
yes, it is possible, as a matter of fact manual also says so...
bohis is offline   Reply With Quote

Old   September 26, 2011, 10:59
Default
  #3
Senior Member
 
hamid
Join Date: Nov 2010
Posts: 185
Rep Power: 6
hamid1 is on a distinguished road
Hi
Thank you for reply, is it in help or user guide?
hamid1 is offline   Reply With Quote

Old   September 26, 2011, 11:06
Default
  #4
New Member
 
Join Date: Mar 2009
Posts: 15
Rep Power: 8
bohis is on a distinguished road
user guide, but there is just a remark that it is possible. It depends on what you want to simulate...
bohis is offline   Reply With Quote

Old   September 26, 2011, 12:23
Default
  #5
Senior Member
 
hamid
Join Date: Nov 2010
Posts: 185
Rep Power: 6
hamid1 is on a distinguished road
hi,
that is like injection of water in a two phase flow (fluid 2 and fluid 3 while fluid 2 and 3 are modeled with VOF)
hamid1 is offline   Reply With Quote

Old   September 27, 2011, 04:18
Default
  #6
New Member
 
Join Date: Mar 2009
Posts: 15
Rep Power: 8
bohis is on a distinguished road
then u need to write some UDF to provide coupling between DPM and VOF.
bohis is offline   Reply With Quote

Old   September 30, 2011, 05:26
Default
  #7
Senior Member
 
hamid
Join Date: Nov 2010
Posts: 185
Rep Power: 6
hamid1 is on a distinguished road
thank you, but could u explain a little bit more..
hamid1 is offline   Reply With Quote

Old   September 30, 2011, 06:03
Default
  #8
New Member
 
Join Date: Mar 2009
Posts: 15
Rep Power: 8
bohis is on a distinguished road
u did not described your problem in details, for this reason nobody here can help you here.
From my point of view, I can only tell you a general rule:

1) write UDF to for mass, momentum, energy transfer from DPM to VOF
2) make sure that everything is conserved (no sinks, sources)
bohis is offline   Reply With Quote

Old   September 30, 2011, 08:53
Default
  #9
Senior Member
 
hamid
Join Date: Nov 2010
Posts: 185
Rep Power: 6
hamid1 is on a distinguished road
thank u for the clue..
the problem is injecting water in the domain of two fluids (fluid2 and fluid 3),
the domain is a pipe.. fluid 2 and fluid 3 are modeled with VOF and the injection of water is modeled by DPM,
hamid1 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
Problems bout CFD model of biomass gasification, Downdraft gasifier wanglong FLUENT 2 November 26, 2009 00:27
How to access only one phase in multiphase model by UDF wersoe Fluent UDF and Scheme Programming 0 September 23, 2009 07:57
Mixture model with one compressible fluid phase oden FLUENT 0 September 26, 2006 09:11
How to model the solid-fluid phase change in CFX ohrmond CFX 2 May 26, 2006 06:27
two phase model - pressure marcel Main CFD Forum 3 September 8, 2003 09:25


All times are GMT -4. The time now is 22:33.