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

moment coefficient

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 28, 2010, 11:23
Default moment coefficient
  #1
Member
 
tom
Join Date: Feb 2010
Posts: 46
Rep Power: 16
caohan is on a distinguished road
Hi, all

I am doing an aerofoil simulation now, why the moment coefficient is always positive? the experimental data that I have is negative. Does anybody have the same problem with me?

Han
caohan is offline   Reply With Quote

Old   April 29, 2010, 10:42
Default
  #2
Senior Member
 
Chris
Join Date: Jul 2009
Location: Ohio, USA
Posts: 169
Rep Power: 16
Chris D is on a distinguished road
I think it depends on your coordinate system. From the pilot's perspective, a nose-up pitching moment is positive, but in a right-handed coordinate system, it's negative.
Chris D 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
2D Airfoil Centre of Pressure, Pitch Moment and Pitch Moment Coefficient aerospain ANSYS 2 May 4, 2020 21:47
Writing Moment coefficient for different walls at different rotational axis harishameed33 Main CFD Forum 0 April 27, 2010 13:17
UDF extern variable - mean time moment coefficient enry Fluent UDF and Scheme Programming 0 November 14, 2009 07:56
UDF extern variable - mean time moment coefficient enry Fluent UDF and Scheme Programming 0 November 14, 2009 07:51
Automotive test case vinz OpenFOAM Running, Solving & CFD 98 October 27, 2008 09:43


All times are GMT -4. The time now is 08:31.