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

Lift and drag of a 3d model?

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 10, 2017, 23:57
Default Lift and drag of a 3d model?
  #1
New Member
 
Isaiah
Join Date: Sep 2017
Posts: 1
Rep Power: 0
Isaiah is on a distinguished road
Is it possible to obtain the lift and drag coefficients of a three dimensional body in ANSYS Fluent? Or, would it be acceptable to take the coefficients of several cross-sections along the wings and body and perform a weighted average calculation to find the lift and drag values for the entire craft?
Isaiah is offline   Reply With Quote

Old   September 11, 2017, 04:15
Default
  #2
Member
 
Baris PULAT
Join Date: Sep 2016
Location: Italy
Posts: 59
Rep Power: 6
bpulat is on a distinguished road
I don't know what your application is but for most bodies the projected area is used for calculations. Pressure coefficient, pressure drag, skin friction, viscous coefficient will all be calculated according to the exposed external surface.

For your question if you need to compare two different datas, you can use Cd and Cl. Cd and Cl will be calculated according to the reference area.If not you can use the forces on exposed areas but i don't really know what your case is.
bpulat is offline   Reply With Quote

Reply

Tags
aircraft design, calculate total force, drag coefficient, lift coefficient, torque coefficient

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
Lift and drag force for 2D flow over cylinder model Haonan Uwin FLUENT 0 May 11, 2017 01:29
getting very large value of coefficent of drag and lift for a 3d model aham17 FLUENT 0 April 25, 2017 00:41
wrong SU2 calculation for lift and drag coefficient for NAC4421 mechy SU2 7 January 9, 2017 06:18
Airfoil lift and drag using k-kl-omega turbulence model hylleman OpenFOAM Running, Solving & CFD 6 June 17, 2016 16:10
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32


All times are GMT -4. The time now is 15:02.