CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Airfoil boundary conditions

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

LinkBack Thread Tools Display Modes
Old   August 15, 2014, 02:10
Default Airfoil boundary conditions
New Member
Join Date: May 2014
Posts: 22
Rep Power: 5
cinclus is on a distinguished road
Hello everybody,

I know that the issue of boundary conditions has been posed quite often.
Indeed, in a previous thread I read that generally pressure and pressure far field can be used in case of compressible subsonic flow.

In my case though, a NACA0015 airfoil with flap deflected by 10, when I apply far field pressure conditions on outlet the Cd always comes out with a negative value.
Nonetheless, this does not occur in case of pressure outlet where the Cd results are good.
(The inlet conditions are pressure far field in both cases).

Could you give me any explanation?
cinclus 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
Domain Imbalance HMR CFX 5 October 10, 2016 05:57
sliding mesh problem in CFX Saima CFX 45 September 22, 2015 10:53
The artificial farfield boundary conditions for the 2-D airfoil ljnpu Main CFD Forum 2 October 26, 2011 08:42
2D Airfoil - Dimensions & boundary conditions -CFX Santiago CFX 3 December 13, 2006 11:50
A problem about setting boundary conditions lyang Main CFD Forum 0 September 19, 1999 18:29

All times are GMT -4. The time now is 04:03.