CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Regarding Ourlet Boundary Condition

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

LinkBack Thread Tools Display Modes
Old   January 12, 2012, 13:01
Default Regarding Ourlet Boundary Condition
New Member
G Sivaramakrishna
Join Date: Apr 2011
Posts: 1
Rep Power: 0
ksivarama is on a distinguished road
Is it ok to use 'exit static pressure with target mass flow rate' boundary condition for a high subsonic flows (Mn ~ 0.7-0.9)?
ksivarama is offline   Reply With Quote

Old   January 14, 2012, 00:56
Senior Member
Lucky Tran
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 1,903
Rep Power: 26
LuckyTran will become famous soon enoughLuckyTran will become famous soon enough
Absolutely. The exit static pressure is a very robust boundary condition and often makes the most physical sense and should be used whenever appropriate.

You may want to guess an exit pressure and run the solver for awhile without enabling the target mass flow rate option. Once the main flow features have settled and the solution has stabilized, then the target mass flow rate option can be turned on. You may have convergence trouble if the target mass flow rate option is turned on from the 1st iteration.
LuckyTran is offline   Reply With Quote


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
Domain Imbalance HMR CFX 5 October 10, 2016 05:57
Can anyone give me some hint on how to make traction free boundary condition? poplar OpenFOAM 3 January 14, 2015 03:37
Boundary Conditions Thomas P. Abraham Main CFD Forum 20 July 7, 2013 05:05
Setting outlet Pressure boundary condition using CAFFA code Mukund Pondkule Main CFD Forum 0 March 16, 2011 04:23
How to set boundary condition in Fluent for the fo Peiyong FLUENT 1 November 10, 2006 12:44

All times are GMT -4. The time now is 23:00.