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

Submerged Jet

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 14, 1999, 15:58
Default Submerged Jet
  #1
X. Wang
Guest
 
Posts: n/a
Hi, Every body, I began to work on a submerged horizontal offset jet. The software I am thinking to use is FLUENT. I'd like to get some advices from some of you if "fluent" is suitable to calculate the water jet produced shear stress on the horizontally placed wall below the jet nozzle? Thanks a lot.
  Reply With Quote

Old   January 14, 1999, 21:28
Default Re: Submerged Jet
  #2
Sung-Eun Kim
Guest
 
Posts: n/a
Hi,

FLUENT will do a fairly decent job for the submerged offset turbulent jet problem you have in mind, as long as you resolve the shear layer on both sides of the jet with sufficiently fine mesh.

I'm interested in learning more about your problem. I've once modeled a submerged 2D turbulent offjet problem involving heat transfer. The offset, i.e., the height of the jet center from the wall was such that the flow reattaches onto the wall at some horizontal distance .I can share the case with you. It will give you an idea of the mesh perhaps equally applicable to your case.

  Reply With Quote

Old   January 15, 1999, 02:44
Default Re: Submerged Jet
  #3
Jonas Larsson
Guest
 
Posts: n/a
We've done a bit of validations on jets. We've compared Fluent with our in-house code and also with measurements. Fluent seems to do a decent job, although our in-house code gives sligthly better results (using a k-omega model). As Sung-Eun Kim said, you have to be very careful with the grid in Fluent so that you resolve the shear layers well from the beginning. You can not start with a coarse grid and expect adaptivity to fix the resolution - it doesn't work.

  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
2D Plane Jet Fluent Solution doug Main CFD Forum 10 October 16, 2013 01:47
Jet fan and Tunnel simulation ahlo7 CFX 7 March 7, 2012 11:25
determination of jet front Fred CFX 5 February 11, 2007 13:01
method to determine jet front Fred Main CFD Forum 0 February 8, 2007 14:15
submerged circular jet Anuj Phoenics 3 July 14, 2006 16:37


All times are GMT -4. The time now is 19:08.