CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Post-Processing

Sectional force coefficients

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

LinkBack Thread Tools Search this Thread Display Modes
Old   October 7, 2011, 00:45
Default Sectional force coefficients
Albert Tong
Join Date: Dec 2010
Location: Perth, WA, Australia
Posts: 76
Blog Entries: 1
Rep Power: 15
tfuwa is on a distinguished road
Greetings to all,

For Bluff Structures, OF has the excellent forceCoeffs utilities to calculate force coefficients, which are defined as drag coefficient Cd = Fx/(rho*U^2*D*H/2) and lift coefficient Cl = Fy/(rho*U^2*D*H/2). These are actually the averaged force cofficients along the bluff body. Sometimes, we need to know the sectional force coefficients at a certain cross-section along z-direction, which can be formulated as Cd(z) = Fd(z)/(rho*U^2*D/2) and Cl(z) = Fl(z)/(rho*U^2*D/2). They are obtained by integrating the pressure and shear stress over the circumference of a cross section.

Are these calculations for sectional force coefficients available in OF? The answer is probably no. Then, can anybody please suggest a way on programming to realize this utility? (I am not familiar with C++, , so please give a little bit more information.)

tfuwa is offline   Reply With Quote

Old   June 27, 2013, 07:49
Senior Member
Join Date: Jan 2013
Posts: 134
Rep Power: 13
kkpal is on a distinguished road
hi albert, I'm facing the same problem, have you found the solution to this question?
kkpal is offline   Reply With Quote


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
Force can not converge colopolo CFX 13 October 4, 2011 23:03
Lift and Drag force coefficients vkrastev OpenFOAM 0 January 28, 2010 18:04
how to set lift and drag coefficients in force mon alagesanj FLUENT 0 November 16, 2008 21:47
Density for calculating Force Coefficients ste_lakey CFX 2 September 19, 2005 05:35
Force coefficients problem! fpz Main CFD Forum 0 April 28, 2005 21:36

All times are GMT -4. The time now is 13:26.