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

K-e in a laminar flow - what happens

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 18, 2003, 11:10
Default K-e in a laminar flow - what happens
  #1
Christian
Guest
 
Posts: n/a
I was wondering. When doing a turbulence calculation using e.g. K-e or RSM, what happens in the regions of the domain where the flow is laminar?

Will the model impose some false turbulence, or???

Cheers, Christian
  Reply With Quote

Old   November 18, 2003, 12:32
Default Re: K-e in a laminar flow - what happens
  #2
sylvain
Guest
 
Posts: n/a
Yes. The turbulence's production is only driven by the velocity gradients. The destruction of turbulence is epsilon. So there is no reason for the turbulence to collapse in the "laminar" regions.

Sylvain
  Reply With Quote

Old   November 24, 2003, 12:04
Default Re: K-e in a laminar flow - what happens
  #3
nautty professor
Guest
 
Posts: n/a
hi, did u find ur answrer or u still need more information. if yes then let me know. i have got good material on t his topic .

be happy and enjoy

  Reply With Quote

Old   November 26, 2003, 02:30
Default Re: K-e in a laminar flow - what happens
  #4
rslgp
Guest
 
Posts: n/a
Dear frined, I wanted more information on this can you...? eagerly waiting for your reply.. bye
  Reply With Quote

Old   November 26, 2003, 08:13
Default Re: K-e in a laminar flow - what happens
  #5
Christian
Guest
 
Posts: n/a
Sylvain's answer is satisfying, but I am interested in background material if you have some.
  Reply With Quote

Old   December 1, 2003, 08:08
Default Re: K-e in a laminar flow - what happens
  #6
rslgp
Guest
 
Posts: n/a
I am also in need of some matrial in that area. Nauty professor should give some idea!.. bye
  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
Boundary Layer of Laminar Flow over a Flat Plate Blasius_Pohlhausen_Crocco Main CFD Forum 12 September 30, 2013 17:35
Can I use turbulent model to solve a laminar flow? nikhil FLUENT 5 February 1, 2011 11:42
How to enforce laminar flow while using k-e Grzegorz Kondora FLUENT 0 January 28, 2009 11:35
grid for laminar flow kim FLUENT 2 April 4, 2002 02:44
Inviscid Drag at subsonic, subcritical Mach # Axel Rohde Main CFD Forum 1 November 19, 2001 13:19


All times are GMT -4. The time now is 08:43.