UDF: problem with calculating velocity gradient to normal direction -- CFD Online Discussion Forums

January 15, 2019, 02:29	UDF: problem with calculating velocity gradient to normal direction	#1
hkdai New Member Ho Kam Dai Join Date: Oct 2018 Posts: 1 Rep Power: 0	Hello, Recently, I am doing a project related to a pipe structure and I need to do some modification to the surface shear stress, so I need to access the velocity gradient to the normal direction for the purpose. Since the structure is something similar to a circular pipe, C_V_G(c,t),C_U_G(c,t) and C_W_G(c,t) would not directly access what I need. Is there any thoughts or suggestion that can help me out of this problem?

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 Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Surface normal velocity BC with zero gradient tangential, cylinder	c_dowd	OpenFOAM Running, Solving & CFD	0	May 25, 2013 07:22
Multi step transient UDF velocity profile problem	William177	FLUENT	1	February 3, 2008 06:47
NACA0012 geometry/design software needed	Franny	Main CFD Forum	13	July 7, 2007 15:57
the problem of UDF	zzb	FLUENT	2	April 5, 2006 05:36
problem for UDF velocity	Geremi	FLUENT	0	April 19, 2005 02:13

All times are GMT -4. The time now is 15:45.