NEED HELP TO create UDF to define a boundary condition automatically

bonna0271 · May 21, 2012, 10:53

i must create a UDF to define a velocity inlet at the face of my box which is normal to "y axis" and which is the closest and the furthest will be a pressure outlet. and the other faces will be walls.
need a udf because i have many geometries and because the box has been separate in random faces.

jwillie2000 · May 21, 2012, 11:11

How are you setting up your case? Not sure if a udf macro exist for doing what you want. But you could use a journal file to help you automatically setup your entire Fluent case including defining your bcs. Jimmy

bonna0271 · May 22, 2012, 04:20

Quote:

Originally Posted by jwillie2000

But you could use a journal file to help you automatically setup your entire Fluent case including defining your bcs. Jimmy

But like i said my boxes which enclosure my geometries are separate in 6 random faces. so i can't use a journal file

bonna0271 · May 22, 2012, 05:20

If someone has an idee ???

May 21, 2012, 10:53	NEED HELP TO create UDF to define a boundary condition automatically	#1
bonna0271 New Member bon Join Date: May 2012 Posts: 5 Rep Power: 14	i must create a UDF to define a velocity inlet at the face of my box which is normal to "y axis" and which is the closest and the furthest will be a pressure outlet. and the other faces will be walls. need a udf because i have many geometries and because the box has been separate in random faces.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
UDF for inhomogenous Neumann boundary condition	akhilesh	Fluent UDF and Scheme Programming	3	December 24, 2012 12:14
Need help to define Boundary condition	Chirag2302	FLUENT	6	May 7, 2012 07:51
[stressAnalysis] how to define a new boundary condition	xck1986	OpenFOAM CC Toolkits for Fluid-Structure Interaction	0	February 23, 2011 05:56
External Radiation Boundary Condition for Grid Interface	CFD XUE	FLUENT	0	July 9, 2010 03:53
UDF FOR UNSTEADY TIME STEP	mayur	FLUENT	3	August 9, 2006 11:19

May 21, 2012, 11:11		#2
jwillie2000 Member James Willie Join Date: Mar 2009 Posts: 81 Rep Power: 17	How are you setting up your case? Not sure if a udf macro exist for doing what you want. But you could use a journal file to help you automatically setup your entire Fluent case including defining your bcs. Jimmy

May 22, 2012, 05:20		#4
bonna0271 New Member bon Join Date: May 2012 Posts: 5 Rep Power: 14	If someone has an idee ???