CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

k-omega turbulence model: 1 vs 2 order solution

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 31, 2009, 14:57
Default k-omega turbulence model: 1 vs 2 order solution
  #1
New Member
 
Silvia
Join Date: Aug 2009
Posts: 3
Rep Power: 10
Manucia is on a distinguished road
Hi,
I am modelling film cooling on a blade leading edge.
I got a good solution with ke realizable turbulence model. Then I refined the grid so that y+ is less than 5 and I set the kw SST turbulence model.
I can get convergence only with the first order scheme solution in the dissipation rate. When I shift to the second order solution, omega residuals jump and suffer for high oscillation.
Do you have any suggestion to fix the problem?

Thans in advance
Good work to everybody
Silvia
Manucia 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
Getting steady-state solution for turbulent model? Kwontona FLUENT 0 February 23, 2007 18:14
v2-f turbulence model in CFX? flga CFX 14 November 23, 2006 07:12
Turbulence model equations Vidya Raja FLUENT 1 September 18, 2006 00:09
HELP!! Prandtl numbers in RNG k-e turbulence model maoasis FLUENT 0 April 24, 2006 10:51
Wall functions Abhijit Tilak Main CFD Forum 6 February 5, 1999 02:16


All times are GMT -4. The time now is 20:40.