CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > CFX

Modeling Laval nozzle, subsonic flow to supersonic

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 18, 2007, 00:23
Default Modeling Laval nozzle, subsonic flow to supersonic
  #1
Bloshchitsyn Vladimir
Guest
 
Posts: n/a
Hello! I try simulate Laval nozzle... I use Air at 25C(Isotermal)... pressure difference - 1 amt... and CFX return very big velosity, more than 1000 m/s! How fix this problem?

Some questions: 1) What's BC i should use? Supersonic or subsonic flow 2) What's thermal condition? (Isotermal, Thermal Energy, Total energy)

  Reply With Quote

Old   June 18, 2007, 02:38
Default Re: Modeling Laval nozzle, subsonic flow to supers
  #2
Dr. Flow Squad
Guest
 
Posts: n/a
Total Energy and Ideal gas air. The density varies a lot.
  Reply With Quote

Old   June 18, 2007, 05:18
Default Re: Modeling Laval nozzle, subsonic flow to supers
  #3
Gert-Jan
Guest
 
Posts: n/a
There is a quite good tutorial for a laval nozzle with supersonic outlet........

Gert-Jan
  Reply With Quote

Reply

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
Trying to achieve supersonic flow in a pipe jpo FLUENT 14 June 3, 2010 17:59
A supersonic combustion in a Laval nozzle argeus FLUENT 0 March 29, 2010 13:52
Modeling Bleed in Supersonic Flow Mohd Yousuf Ali FLUENT 0 March 17, 2007 04:51
subsonic nozzle flow, inlet-outlet BCs felix Main CFD Forum 3 May 15, 2006 10:37
mixed subsonic and supersonic flow Jim FLUENT 0 June 12, 2004 01:31


All times are GMT -4. The time now is 03:58.