CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

UNDEREXPANDED JET

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 23, 2003, 02:55
Default UNDEREXPANDED JET
  #1
Parshant Dhand
Guest
 
Posts: n/a
Has anybody modeled an underexpanded jet flow from a nozzle, in which there is shock cell formation, if yes then i have couple of questions regarding boundary conditions and initial conditions for such a flow.
  Reply With Quote

Old   May 26, 2003, 05:03
Default Re: UNDEREXPANDED JET
  #2
heydari
Guest
 
Posts: n/a
dear, I have modelled a jet flow in to a box domain filled of water, but I have some problems too, if you have, so tell me yours.
  Reply With Quote

Old   May 26, 2003, 05:23
Default Re: UNDEREXPANDED JET
  #3
Parshant Dhand
Guest
 
Posts: n/a
What inlet boudary conditions and initial conditions and exit boundary conditions have you taken, I guess i am facing a problem there only. Besides i am not getting an optimum value for courant number and dt. i am seeing shock waves and compression because of them just dont know if the results are correct or not.
  Reply With Quote

Old   May 27, 2003, 04:24
Default Re: UNDEREXPANDED JET
  #4
phd_y2k2001@yahoo.com
Guest
 
Posts: n/a
whats your Reynoulds number at the inlet? And Froude number ? Could you pls describe your domain? Are you considering swirling ?

phd_y2k2001@yahoo.com
  Reply With Quote

Old   June 24, 2003, 05:21
Default Re: UNDEREXPANDED JET
  #5
heydari
Guest
 
Posts: n/a
my Re=42000, and the jet openning is 0.014 m and the vel inlet is 3.33 m/s.... i encountered a swirling but there is no limit for this circulation...
  Reply With Quote

Reply


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
Re: Underexpanded jet BC kiran Main CFD Forum 2 December 26, 2010 13:17
problem with highly underexpanded free jet Raaf Phoenics 11 April 8, 2009 14:36
underexpanded jet shuo Main CFD Forum 0 January 10, 2009 22:43
Boundary conditions for underexpanded jet shuo Main CFD Forum 2 April 6, 2008 01:40
underexpanded jet flozzermeister Main CFD Forum 0 November 10, 2006 07:59


All times are GMT -4. The time now is 04:28.