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

two-fluid boundary conditions

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 27, 2006, 10:28
Default two-fluid boundary conditions
  #1
Wouter
Guest
 
Posts: n/a
I understood that if you want to model a multi-phase flow (for instance a bubble column), creating boundary conditions (only gas out - no liquid flow out) in Fluent gives problems with convergence. Other software (CFX) would be better suited for these kinds of problems. Anybody has experience in Fluent with this and has suggestions?

Thanks
  Reply With Quote

Old   March 27, 2006, 19:18
Default Re: two-fluid boundary conditions
  #2
onlooker
Guest
 
Posts: n/a
There are no problems. You can either just patch the top surface with air and accordingly adjust the backflow volume fraction, or better still you can use the degassing B/C UDF available on www.fluentusers.com.
  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
Implementation of boundary conditions for FVM Tom Main CFD Forum 7 August 26, 2014 05:58
transient simulation of a rotating rectangle icesniffer CFX 1 August 8, 2009 07:25
Boundary conditions at Fluid Solid interface (CHT) michelle CFX 1 April 21, 2008 04:06
Help with boundary conditions Dan CFX 0 April 3, 2006 11:32
Terrible Mistake In Fluid Dynamics History Abhi Main CFD Forum 12 July 8, 2002 09:11


All times are GMT -4. The time now is 10:26.