CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

pressure oulet condition

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

LinkBack Thread Tools Display Modes
Old   May 2, 2005, 10:19
Default pressure oulet condition
nam su
Posts: n/a
Hi. My problem has one inlet and two outletes(vortex tube). The inlet condition is total pressure that is 0.544Mpa(absolute) One oulet conditon is pressure boundary condition that is 0.136Mpa(absolute) The other is pressure boundary condition with pressure varing so as to vary the mass fraction

the flow is compressible what condition is used for inlet and two oulet condition? thank you
  Reply With Quote

Old   May 4, 2005, 11:29
Default Re: pressure oulet condition
Ashish Jain
Posts: n/a
Hi, What do u mean by varying? Is it varying with time or spatial variation. For both the cases u'll need to write UDF to specify boundary condition for second outlet.

Regards Ashish
  Reply With Quote

Old   January 24, 2012, 05:48
Default UDF for pressure variation
Join Date: Jul 2011
Posts: 43
Rep Power: 8
niravtm007 is on a distinguished road
Send a message via Skype™ to niravtm007
Hii friends
My problem is flow through river channel, I have taken a orbitary region so at exit of my geometry flow exits into river itself. so i need to know how to apply UDf at exit, as pressure must vary with P=row*g*h. my exit cross section is not uniform so what should i do please help. is it possible to apply custom field function ???? in fluent please help ASAP
niravtm007 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
Static pressure boundary condition at outlet jennz CFX 4 February 11, 2014 04:29
Implications for heat transfer when outlet pressure boundary condition used Blob CFX 2 March 26, 2009 07:22
How to give pressure boundary condition in SIMPLER algorithm shyamprasad Main CFD Forum 0 March 17, 2009 00:40
Doubt in Inlet Pressure Boundary Condition Sumitha FLUENT 3 October 20, 2008 03:19
Pressure Boundary Condition chiseung FLUENT 1 June 19, 2001 21:05

All times are GMT -4. The time now is 11:24.