Simulating Particle motion in tube using UDF

alib022 · November 24, 2011, 05:13

Hi friends

I want to simulate moving a particle in a tube of water. I want to use UDF, Is there any one have any simple example of this type of UDF files?
or any body know which macro better to use?
CG_MOTION or SDOF ?

Spring.s · March 11, 2012, 06:02

Hi
I think that your case will not require to UDF!
You can use the Injection option of Define meno in fluent for tail the one or more particle.

Jessica.S · March 11, 2012, 23:32

Quote:

Originally Posted by alib022

Hi friends

I want to simulate moving a particle in a tube of water. I want to use UDF, Is there any one have any simple example of this type of UDF files?
or any body know which macro better to use?
CG_MOTION or SDOF ?

what kind of particle? rigid body?

alib022 · March 12, 2012, 10:21

yes, it's a rigid body, a rigid ball which it's diameter is half of tube's diameter

Jessica.S · March 12, 2012, 11:37

this might help...

http://www.cfd-online.com/Forums/flu...-6dof-udf.html

Jessica.S · March 12, 2012, 11:39

you can also swap the 6dof with cg motion. personally i prefer 6dof...

ninhtran · March 27, 2017, 05:49

Quote:

Originally Posted by alib022

yes, it's a rigid body, a rigid ball which it's diameter is half of tube's diameter

Hi Ali,

I would like to ask you how did you solve the moving sphere in the tube?
Now I get stuck on this problem and it could be great if you can help me.

Thanks Ali!

November 24, 2011, 05:13	Simulating Particle motion in tube using UDF	#1
alib022 Member Ali Join Date: Aug 2011 Location: Milwaukee Posts: 34 Rep Power: 15	Hi friends I want to simulate moving a particle in a tube of water. I want to use UDF, Is there any one have any simple example of this type of UDF files? or any body know which macro better to use? CG_MOTION or SDOF ?

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March 11, 2012, 06:02		#2
Spring.s New Member Join Date: May 2011 Posts: 22 Rep Power: 15	Hi I think that your case will not require to UDF! You can use the Injection option of Define meno in fluent for tail the one or more particle.

March 12, 2012, 10:21		#4
alib022 Member Ali Join Date: Aug 2011 Location: Milwaukee Posts: 34 Rep Power: 15	yes, it's a rigid body, a rigid ball which it's diameter is half of tube's diameter

March 12, 2012, 11:37		#5
Jessica.S New Member Jessica Simberg Join Date: Mar 2012 Posts: 18 Rep Power: 14	this might help... http://www.cfd-online.com/Forums/flu...-6dof-udf.html

March 12, 2012, 11:39		#6
Jessica.S New Member Jessica Simberg Join Date: Mar 2012 Posts: 18 Rep Power: 14	you can also swap the 6dof with cg motion. personally i prefer 6dof...