CFD Online Logo CFD Online URL
Home > Forums > FLUENT

high pressure gas release

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

LinkBack Thread Tools Display Modes
Old   November 17, 2005, 00:45
Default high pressure gas release
Posts: n/a
Hi everybody: I have a high pressure cylinder (250 bar) releasing methane. Knowing the the dimension of th leak hole and following a model and an equation of state for the gas, I got the data for the masse flow rate, pressure and temperature as a function of time. It choked up to 60 seconds. I did one UDF for the mass low rate/surface of the hole as function of time, ONE udf for the pressure as function of time and one for the temperature as a function of time. When I ran the turbulent compressible model, I get many error messages on pressure and temperature. I ran the incompressible model with the turbulence, everything is correct. The error in AMG solver happens only when I try to use the compressible model. Any suggestion will be appreciated.
  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
interFoam: strange pressure with high fluid viscosity? ckroener OpenFOAM 3 April 7, 2010 12:51
How:Setting for High pressure gas shiwencailx STAR-CD 0 January 19, 2010 05:25
high pressure jet modeling Rufas FloEFD, FloWorks & FloTHERM 3 May 19, 2008 07:14
Does star cd takes reference pressure? monica Siemens 1 April 19, 2007 11:26
Hydrostatic pressure in 2-phase flow modeling (long) DS & HB Main CFD Forum 0 January 8, 2000 16:00

All times are GMT -4. The time now is 06:01.