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

Pressure boundary condition and real gas

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

LinkBack Thread Tools Search this Thread Display Modes
Old   July 19, 2005, 11:42
Default Pressure boundary condition and real gas
Posts: n/a

I have modelised an high temperature real gas passing in a large nozzle (about 80cm length and 5cm diameter) and discharging in an atmospheric pressure volume. The injection of gas is a lateral injection with a vortex component. I have used the user real gas model, an inlet pressure of 1.1atm in the nozzle and an inlet pressure of 1atm for the exit volume. The flow is laminar. In the volume, very strong waves appear in the field of velocity which is not really "normal". I think that it's come from the coupled model which not seems to really work with this kind of boundary condition. Is anyone has an experience of this kind of problem?

Thank you very much


I have imposed two boundary conditions
  Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
mass flow in is not equal to mass flow out saii CFX 12 March 19, 2018 05:21
Applying pressure on a boundary pranab_jha Fluent UDF and Scheme Programming 6 April 1, 2011 08:20
reference pressure and relative pressure in CFX and real gas setting nuimlabib Main CFD Forum 0 October 12, 2010 20:55
Please help with flow around car modelling! Tudor Miron CFX 17 March 19, 2004 19:23
Pressure boundary condition Brindaban Ghosh Main CFD Forum 6 May 3, 2000 13:11

All times are GMT -4. The time now is 18:09.