CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Programming & Development

Velocity in a Turbulent boundary layer

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 17, 2011, 10:21
Default Velocity in a Turbulent boundary layer
  #1
Member
 
fisch
Join Date: Feb 2010
Posts: 97
Rep Power: 6
fisch is on a distinguished road
Hi!

I had a look on the turbulence models, e.g. k-epsilon.
But i don't really understand how the wall treatment works.
There are three questions:

OF is only updating the epsilon values and the k gradient at the nearest cell to the wall and solves the equations for the inner field, right?

But why is the velocity not influenced directly by the wall function with e.g. a log-law?

Or is all that done in the correctBoundaryConditions() routine?

thanks a lot,
rupert
fisch is offline   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
ATTENTION! Reliability problems in CFX 5.7 Joseph CFX 14 April 20, 2010 15:45
RPM in Wind Turbine Pankaj CFX 9 November 23, 2009 04:05
turbulent boundary layer over a flat plate pritam.edke Main CFD Forum 0 November 5, 2009 12:53
Variables Definition in CFX Solver 5.6 R P CFX 2 October 26, 2004 02:13
Boundary Layer Flow Paradox Wen Long Main CFD Forum 3 September 24, 2002 08:47


All times are GMT -4. The time now is 02:30.