CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

what's the meaning of turbulent kinetic energy? help!!!

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 25, 2010, 09:35
Default what's the meaning of turbulent kinetic energy? help!!!
  #1
syd
New Member
 
Mattia
Join Date: Mar 2010
Posts: 7
Rep Power: 16
syd is on a distinguished road
Hi everyone!

I'm having some troubles! Let me explain...

I'm studying a wing, varying the incidence angle of the air flux: no problems with mesh or simulations, I am already in post-processing; I have been told to plot (in 3 plane sections I created), considering the varying angle:
1-velocity vectors;
2-relative pressure;
3-turbulent kinetic energy;
now, no problems with velocity and pressure.
I don't understand the plots of the turbulent kinetic energy: what is the meaning of all of these? How does it change when I reach the stall angle for the wing, and start to visualize the first vortex in the wake?
I can't find anything on my books...

Thank you!
syd is offline   Reply With Quote

Old   August 31, 2010, 10:22
Default
  #2
Member
 
Robert
Join Date: Feb 2010
Location: Germany
Posts: 32
Rep Power: 16
Robert@cfd is on a distinguished road
As you can see by the definition of the TKE, it gives you information about the interaction of the turbulent fluctuations, or the kinetic energy per unit mass associated with eddies
Robert@cfd is offline   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
LES and total turbulent kinetic energy Boerge FLUENT 1 September 8, 2012 12:41
ATTENTION! Reliability problems in CFX 5.7 Joseph CFX 14 April 20, 2010 16:45
turbulent kinetic energy in 2D k-e model ph FLUENT 1 January 31, 2007 09:55
what's the macro of SGS turbulent kinetic energy? lcw FLUENT 1 June 13, 2006 04:08
Turbulent Kinetic Energy Olga FLUENT 2 October 11, 2002 16:05


All times are GMT -4. The time now is 14:27.