UDF problem

Rowing · June 20, 2011, 09:43

Hello

I was wondering if someone could help me out.

At the moment I have the CG_MOTION udf and specifying velocity as
vel[0] =1. I need the velocity to travel to the end of my domain and then to reset to the begin point and travel again and again and so on

can someone please help me with this???

I also have to define the interaction of air and water. For this using the vof model. When I do it as the tutorial say I gat the whole domain as either water or air but not a defined line between the two?? Can someone please help me?

Thank you

AdrienL · June 30, 2011, 10:38

Hi,

I don't really get the first part of your question but for the second part you can use the Adapt --> Region to mark a region that will be filled with water.
After initialization you can use the patch option, you have to choose the 2nd fluid material and patch it on the region you just created (under registers to patch)

Adrien

June 20, 2011, 09:43	UDF problem	#1
Rowing New Member Herman Join Date: May 2011 Posts: 8 Rep Power: 14	Hello I was wondering if someone could help me out. At the moment I have the CG_MOTION udf and specifying velocity as vel[0] =1. I need the velocity to travel to the end of my domain and then to reset to the begin point and travel again and again and so on can someone please help me with this??? I also have to define the interaction of air and water. For this using the vof model. When I do it as the tutorial say I gat the whole domain as either water or air but not a defined line between the two?? Can someone please help me? Thank you

June 30, 2011, 10:38		#2
AdrienL Member Adrien Lemoine Join Date: Jun 2011 Location: Paris,France Posts: 31 Rep Power: 14	Hi, I don't really get the first part of your question but for the second part you can use the Adapt --> Region to mark a region that will be filled with water. After initialization you can use the patch option, you have to choose the 2nd fluid material and patch it on the region you just created (under registers to patch) Adrien __________________ ------------------------------------------- Plz add reputation if the answer is correct A cœur vaillant rien d'impossible ------------------------------------------

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
ATTN ALL: SOLUTON TO UDF COMPILE PROBLEM	Rizwan	Fluent UDF and Scheme Programming	40	March 18, 2018 06:05
Problem with my udf	july	Fluent UDF and Scheme Programming	3	June 20, 2010 06:56
UDF problem	mansha goraya	FLUENT	0	October 29, 2007 00:31
udf compiling problem	akr	FLUENT	3	August 22, 2007 07:14
UDF problem	chiseung	FLUENT	4	January 10, 2002 09:58