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

Three-phase bubble column problem

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 20, 2014, 21:36
Default Three-phase bubble column problem
  #1
New Member
 
Filipe de Menezes
Join Date: Feb 2012
Posts: 12
Rep Power: 14
filipemt is on a distinguished road
Hi Everybody,

I am trying to simulate a three-fluid model (water, air and oil above). First I tried the case only with water and air and I had good results. However, when I inserted the oil above the water it was not phisically valid, with the volume of oil continuously increasing even using degassing condition.
Can someone please help on this?

Thanks in advance,

Filipe.
filipemt is offline   Reply With Quote

Old   May 21, 2014, 07:32
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,746
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
Please post an image of what you are modelling and the CCL.
ghorrocks is offline   Reply With Quote

Old   May 21, 2014, 17:16
Default
  #3
New Member
 
Filipe de Menezes
Join Date: Feb 2012
Posts: 12
Rep Power: 14
filipemt is on a distinguished road
The files are attached!
The two-phase image is physically correct, but the three-phase not (0s, 2s and 6s are represented).

Thanks for the patience!

three-phase 0s oil VOF.jpg

two-phase.jpg

three-phase 2s oil VOF.jpg

three-phase 6s oil VOF.jpg

panela.txt
filipemt is offline   Reply With Quote

Old   May 21, 2014, 18:43
Default
  #4
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,746
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
Are you sure you are adequately converged?
ghorrocks is offline   Reply With Quote

Old   May 21, 2014, 19:40
Default
  #5
New Member
 
Filipe de Menezes
Join Date: Feb 2012
Posts: 12
Rep Power: 14
filipemt is on a distinguished road
I think so.. Do you think it could be a convergence problem?
filipemt is offline   Reply With Quote

Reply

Tags
bubble column, fluids, multiphase, three-phase, water air and oil

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
Bubble column simulation with Lift coefficient UDF raju.vadlakonda Fluent UDF and Scheme Programming 8 June 19, 2023 08:36
bubble column ken FLUENT 1 June 30, 2013 01:18
bubble column reactor hossein65 Main CFD Forum 0 June 25, 2013 15:33
Modelling a Water-Air bubble column GerhardHolzinger OpenFOAM Running, Solving & CFD 1 February 28, 2012 04:12
liquid decreases in bubble column E-E simulation jhchen ANSYS 1 August 3, 2010 10:49


All times are GMT -4. The time now is 22:46.