CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Main CFD Forum

why dynamic mesh method give wrong results?

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 22, 2009, 22:06
Default why dynamic mesh method give wrong results?
  #1
New Member
 
Wei Yang
Join Date: Jul 2009
Location: Shanghai
Posts: 4
Rep Power: 16
weiyang1980 is on a distinguished road
Send a message via MSN to weiyang1980
For conventional CFD study on airfoil, the air is moving, the airfoil is steady. It can give considerable results and acceptable.

In reality, the airfoil flies in air. So, I use dynamic mesh method modeling the motion.

But the results confused me. The lift is a bit smaller and the drag is 3 or 5times of conventional CFD method. why?

can anyone describe the reason?

How can I get the right result using dynamic mesh method?
Thanks!
__________________
Wei Yang Ph.D. student Shanghai Automotive Wind Tunnel Center Tongji University Shanghai 201804 P.R. China
weiyang1980 is offline   Reply With Quote

Reply

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
How to Us Dynamic Mesh in OpenFOAM lzgwhy OpenFOAM Programming & Development 4 November 6, 2009 06:18
incorrect results with a tetrahedral mesh jcmasters OpenFOAM 5 May 20, 2009 17:44
Dynamic Mesh Pj FLUENT 1 March 12, 2007 16:16
Dynamic Mesh Problem - please help! Hila FLUENT 0 August 19, 2006 05:19
Dynamic mesh Phil FLUENT 1 June 15, 2003 05:57


All times are GMT -4. The time now is 02:07.