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

About shear stress, need help!!

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 21, 2006, 22:36
Default About shear stress, need help!!
  #1
Dong Wenchao
Guest
 
Posts: n/a
Dear all,

I want to define the Marangoni stress at a liquid free surface boundary. Marangoni stress is written as follows: del(sigma)=d(sigma)/dT*del(T).

In FLUENT's UDF, we can use cell variations macros to define del(T). For example, dT/dx=C_T_G(c,t)[0].But for face variations, FLUENT don't define corresponding macros, i.e., there is not F_T_G(c,t)[0].

So, I want to know how to define del(T) at a face.

In addition, I want to know how to define cell variations macros in cylindrical coordinates. For example, dT/dr=?

Thank you in advance!
  Reply With Quote

Old   August 23, 2006, 08:38
Default Re: About shear stress, need help!!
  #2
Dong Wenchao
Guest
 
Posts: n/a
Who can ask my questions?

Thanks ahead!
  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
Shear Stress Calculation in the flow. auburnuser FLOW-3D 11 May 12, 2018 14:49
Fluid wall shear stress Sinead Kelly (Kelly) OpenFOAM Running, Solving & CFD 2 March 30, 2011 07:41
How to get shear stress all over the flow domain lingo FLUENT 2 November 3, 2003 22:16
shear stress scalar definitions? Novak Elliott CFX 0 April 6, 2003 02:45
What is the detail definition of wall shear stress zjm FLUENT 0 January 2, 2002 08:43


All times are GMT -4. The time now is 10:17.