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

Collocated SIMPLE and outlet pressure

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 15, 2009, 11:01
Default Collocated SIMPLE and outlet pressure
  #1
New Member
 
Hoarau Yannick
Join Date: Mar 2009
Posts: 21
Rep Power: 8
yhoarau is on a distinguished road
Hi,

i've written an incompressible collocated solver based on SIMPLE scheme. It works fin for steady flow but with unsteady flow (a cylinder at Reynolds 100) i have problem at the outlet with the pressure: i have a blocking effect if I imposed the pressure at the outlet and if i use neumann then the pressure increase every where. In many commercial solver the outlet imposed pressure works fine. Can somebody explain the trick to me?

Many thanks
yhoarau is offline   Reply With Quote

Old   April 16, 2009, 09:16
Default
  #2
New Member
 
Hoarau Yannick
Join Date: Mar 2009
Posts: 21
Rep Power: 8
yhoarau is on a distinguished road
Does anyone have any ideas?
yhoarau 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
Neumann pressure BC and velocity field Antech Main CFD Forum 0 April 25, 2006 02:15
Simple question about pressure outlet. Kiddo FLUENT 3 January 8, 2006 06:28
pressure outlet BC for incompressible flow khaiching Main CFD Forum 6 October 15, 2005 02:58
Terrible Mistake In Fluid Dynamics History Abhi Main CFD Forum 12 July 8, 2002 09:11
what the result is negatif pressure at inlet chong chee nan FLUENT 0 December 29, 2001 06:13


All times are GMT -4. The time now is 16:31.