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

VOF model FLUENT 6.3.26

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 14, 2009, 18:06
Default VOF model FLUENT 6.3.26
  #1
New Member
 
Ayyoub
Join Date: Apr 2009
Posts: 2
Rep Power: 0
ayyoubmehdizadeh is on a distinguished road
Hi

1. Does anybody know: how accurate VOF model can simulate slug flows?
After 6 month I could get my first air-water slugs, but the length of the slugs and the shape of them are not like what I wanted.

2. And also flow do not follow Backer chart precisely. I mean that I do not get slug flows for the superficial velocities that are reported in Backer chart for slug flows

3. The interface shape is also not accurate.



Any comment would be appreciated in advance.

P.S. Setup:FLUENT 6.3 - VOF- LAMINAR - VERY FINE MESH - dt=10^-7 sec!! - air-water flow- Microchannel.
ayyoubmehdizadeh is offline   Reply With Quote

Old   August 12, 2010, 07:00
Default
  #2
New Member
 
Join Date: Jul 2010
Posts: 2
Rep Power: 0
changiz_karamian is on a distinguished road
Quote:
Originally Posted by ayyoubmehdizadeh View Post
Hi

1. Does anybody know: how accurate VOF model can simulate slug flows?
After 6 month I could get my first air-water slugs, but the length of the slugs and the shape of them are not like what I wanted.

2. And also flow do not follow Backer chart precisely. I mean that I do not get slug flows for the superficial velocities that are reported in Backer chart for slug flows

3. The interface shape is also not accurate.



Any comment would be appreciated in advance.

P.S. Setup:FLUENT 6.3 - VOF- LAMINAR - VERY FINE MESH - dt=10^-7 sec!! - air-water flow- Microchannel.





Hi
my thesies is slug flow in microchannel with VOF method.
you can change your boundary condition in periodic type.
and run again.
by hope.
changiz_karamian 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
Reynolds Stress model in CFX vs Fluent Tim CFX 1 October 7, 2009 06:19
heat transfer with s2s radiation model in fluent D. L. FLUENT 3 July 31, 2008 07:40
Integration of a Custom C++ Model into FLUENT Syed Haider FLUENT 1 February 20, 2006 05:49
Can FLUENT model flashing liquids? SWK FLUENT 4 December 13, 2005 22:55
Reynolds Stress Model in Fluent Vs CFX Tim FLUENT 0 December 6, 2005 23:03


All times are GMT -4. The time now is 15:07.