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

NASA High Lift Prediction Workshop

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 11, 2011, 15:48
Default NASA High Lift Prediction Workshop
  #1
Member
 
John
Join Date: Aug 2009
Posts: 92
Rep Power: 16
nomad is on a distinguished road
ANSYS had one of the best predictions of Cl max for the new Trapezoidal Wing using the SST + Menter's Gamma-Theta Transition Model at this workshop.

However, they made some modifications to their code which are the following (quoting from their presentation slide 8 and 9, Ref. http://hiliftpw.larc.nasa.gov/Workshop1/ParticipantTalks/steed-ansys.pdf

Non-standard solver settings:

-Added extra coefficient loops (2 to 3) to steady the solution
  • Feedback due to sharp transition location
  • Steady state uses pseudo-transient scheme instead of under relaxation - Ran transient with 1st order backward Euler scheme to allow additional coefficient loops
Does anybody know how either of these changes influences Cl max prediction, and if so, how does one go about making these changes to the solver settings, whether it be FLUENT, or STAR CCM+.

Thanks.

Last edited by nomad; April 11, 2011 at 17:32.
nomad is offline   Reply With Quote

Reply

Tags
gamma theta, high lift, menter, stall, transition model

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[GAMBIT] High lift configuration airplane model wake ANSYS Meshing & Geometry 0 December 4, 2009 05:15
High Lift Devices Anshul Main CFD Forum 5 June 21, 2005 08:10
Multicomponent fluid Andrea CFX 2 October 11, 2004 06:12
Lift prediction in turbulent models BART FLUENT 3 April 14, 2004 02:15
High lift analysis using overset kei-tee Main CFD Forum 0 April 10, 2003 10:53


All times are GMT -4. The time now is 06:13.