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

high pressure simulation

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

LinkBack Thread Tools Search this Thread Display Modes
Old   November 7, 2008, 01:30
Default high pressure simulation
Posts: n/a

I am doing a flow simulation inside an engine. The domain is the space between the piston and the cylinder. It is a 2 phase flow with air and oil, with a time varying pressure and temperature at the inlet and ambient conditions at the outlet, with one outer wall moving(sinusoidal profile). The pressure can be as high as 50 bar at some point in time. The mesh has been completed and the simulation is running fine with simple flow conditions. Do I have to make any changes to the supersonic pressure condition at the inlet when I test with high pressure? Right now I am getting floating point error at high inlet pressure.
  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
simulation of airfoil at high AOA hsnu84053 FLUENT 0 January 26, 2007 21:34
high pressure gas release ahourri FLUENT 0 November 16, 2005 23:45
MRF simulation : continuity residual high as 0.4 guru FLUENT 2 February 7, 2005 09:33
Injection at high pressure florian(munich) FLUENT 0 October 28, 2004 13:59
FIDAP-simulation with high viscotities Wolfgang Korte FLUENT 2 November 2, 2000 13:14

All times are GMT -4. The time now is 12:03.