CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

CFD in Ground Effect

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

LinkBack Thread Tools Search this Thread Display Modes
Old   January 13, 2008, 13:00
Default CFD in Ground Effect
CFD Newbee
Posts: n/a
Hello Guys,

I have a couple of enquiries regarding a dissertation I am doing regarding WIGE for aeronautical purposes. My dissertation is done entirely in 2D and 3D and I used 3 different turb models SA K-O SST and RSM. I would like to know why in a much more literature answer why the SA and K-O SST preformed better than the RSM model.

Furthermore, i used first point height for my bl mesh and obviously tried to keep my y+ values around 1 for the SA and K-O, but when iterating the same exact mesh for the RSM I was having some rather strange convergence issues. Why is that?

I also did not use any K-Epsilon models because of their stagnation point problems. I thought my drag values would strongly deviate from reality and therefore opted for a K-O SST. Why is this stagnation problem occuring? However, I have seen that many of you have suggested this turbulence model, why? Is it purely because of time?

Thanks in advance for your responses, really appreciate any help I can get!
  Reply With Quote

Old   January 14, 2008, 15:27
Default Re: CFD in Ground Effect
Nazario Nuti
Posts: n/a
No one knows anything?
  Reply With Quote


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
CFD Design...The CFD Future John C. Chien Main CFD Forum 20 November 19, 2015 23:40
CFD for fans & blower housings David Carroll Main CFD Forum 8 August 24, 2000 17:25
PC vs. Workstation Tim Franke Main CFD Forum 5 September 29, 1999 15:01
Which is better to develop in-house CFD code or to buy a available CFD package. Tareq Al-shaalan Main CFD Forum 10 June 12, 1999 23:27
public CFD Code development Heinz Wilkening Main CFD Forum 38 March 5, 1999 11:44

All times are GMT -4. The time now is 13:38.