CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

wall shear stress in UDF

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

Like Tree1Likes
  • 1 Post By max

LinkBack Thread Tools Search this Thread Display Modes
Old   August 11, 2008, 01:07
Default wall shear stress in UDF
Posts: n/a
Hello everyone, I am writing an UDF in which I need to calculate the X wall shear stress. I know that there isn't a dedicated macro; one can just accesses to the velocity gradient vectors (G_U_G and G_V_G). Does anybody know how I can do? my simulation is laminar, 2d and my fluid is incompressible. Thank you very much for any help!
  Reply With Quote

Old   August 13, 2008, 08:36
Default Re: wall shear stress in UDF
Posts: n/a
hello Elisa

F_STORAGE_R_N3V(f,thread,SV_WALL_SHEAR) will return a vector for each face on wall boundaries with components representing the shear stresses in xyz-directions.

cheers Max
Lucrecio likes this.
  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
How to get the wall shear stress by UDF Chen Fangzhi FLUENT 3 November 11, 2014 06:03
wall shear stress brad Main CFD Forum 1 November 3, 2005 16:37
Shear stress at wall John FLUENT 0 September 21, 2005 08:27
UDF for wall shear stress Bastian FLUENT 0 July 21, 2004 04:52
wall shear stress lingo FLUENT 2 June 2, 2003 03:40

All times are GMT -4. The time now is 08:39.