CFD Online Logo CFD Online URL
Home > Forums > CFX


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

LinkBack Thread Tools Display Modes
Old   March 13, 2011, 07:32
Default FX In CFX POst
New Member
Join Date: Mar 2009
Location: Spain
Posts: 6
Rep Power: 10
Julian_Maldonado is on a distinguished road
Hello All

I've started to simulate a UAV on CFX.

We need to get the Cd (Drag Coeficient) throug a alpha polar.

The issue is that for some angle of attack the Fx (normal) over the model is positive, and for other angles of attack (the higest), the Fx normal is negative.
The 0,0,0 coordinates is in the midle of aircraft.

do you know why we have this change on the Force.

The Pre are exactly the same, the only difference is the angle of attack (V*sin(alpha))
Julian_Maldonado is offline   Reply With Quote


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
How to get reynolds stress values in POST CFX syler3321 CFX 6 January 1, 2017 08:54
CFX post legend modification mactech001 CFX 3 December 25, 2011 23:12
CFX post - graph kmgraju CFX 0 July 22, 2010 11:59
Chart Generation in CFX Post Vadim Baines-Jones CFX 2 August 28, 2007 09:14
Tecplot for CFX post processing pantangi goud CFX 2 August 24, 2005 16:42

All times are GMT -4. The time now is 17:47.