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

Elemental Drag Custom Field Function

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 12, 2007, 09:00
Default Elemental Drag Custom Field Function
  #1
George Gardner
Guest
 
Posts: n/a
Hello,

I would like to do an x-y plot of elemental drag for an aerofoil vs. chord

I am trying to therefore define a custom field function to define the drag for each aerofoil element. I have a 2d mesh of an aerofoil with approx 160,000 elements. The aeorofil is at zero degrees. I would like a function that can tell me the drag for each element. I have tried various methods eg using:

p * cell-surface-area * sin ( atan (x-surface-area / y-surface-area))

I'm just trying to get a force by multiplying pressure and cell-surface area. I then need to resolve this into the drag direction (x as it is at zero degrees alpha).

This function does not seem to be giving realsitic numbers.

Any ideas please would be much appreciated.

George
  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
Gradient of the Custom Field Function oghazian FLUENT 2 June 29, 2011 15:00
Version 15 on Mac OS X gschaider OpenFOAM Installation 113 December 2, 2009 11:23
Custom field function file extension Ed Kay FLUENT 2 November 10, 2008 11:24
DecomposePar links against liblamso0 with OpenMPI jens_klostermann OpenFOAM Bugs 11 June 28, 2007 18:51
Inviscid Drag at subsonic, subcritical Mach # Axel Rohde Main CFD Forum 1 November 19, 2001 13:19


All times are GMT -4. The time now is 16:04.