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

Two Conditions in the inlet.

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

LinkBack Thread Tools Display Modes
Old   June 27, 2003, 16:58
Default Two Conditions in the inlet.
Posts: n/a
Hi all. I'm a beginner in CFX 5 /CFD. How can I define two properties in a same inlet condition. ( like static pressure and mass flow )? Is it possible? I wish to define a nozzle with an inlet condition of CO2 liquid with pressure and mass and the outlet will be by atmospheric pressure. Does somebody have worked with a nozzle like that? I'll have two phases.
  Reply With Quote

Old   June 28, 2003, 09:09
Default Re: Two Conditions in the inlet.
Posts: n/a
Hi Lucio,

The pressure difference between your inlet and outlet, along with your wall boundary conditions, will determine the mass flow rate. Attempting to specify pressures and the flow rate is overspecifying the problem and cannot be done.

The exception to this is a supersonic inlet, in which case velocity and pressure must be specified (since the downstream pressure is not communicated upstream in a supersonic flow).

Regards, Robin
  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
How to set pulsating inlet boundary conditions with a very high frequency Ton CFX 10 March 22, 2012 17:57
how to enter the inlet conditions in convergent-divergent nozzle qasimali FLUENT 0 April 15, 2011 17:54
Inlet, free-stream, conditions for RSM model Eslam Reda Main CFD Forum 4 February 26, 2010 14:42
pressure with velocity inlet boundary conditions Ashraf Sharara FLUENT 1 August 21, 2008 07:29
inlet boundary conditions species transport richard FLUENT 2 August 20, 2008 07:25

All times are GMT -4. The time now is 00:02.