User defined particle injection areas

yvonne · April 5, 2012, 04:20

I want to carry out particle tracking in CFX 13. I need to inject particles only in certain regions of the domain where pressure drops below a threshold value. I have generated this data and I have it in form of coordinates and I need to use this to define the particle injection region.I tried the same by using the pt_injection.ccl subroutine and pt_injection user function. What is not clear to me is

how do I import the user function? I went to Insert--> User function; but in that case I have to specify the arguments, results and their respective units.
do I need to edit the Library Path?
when I import this ccl, another domain ‘tank’ gets created. Each domain gets an additional parameter ‘region’ suffixed under it.
Is this where I have to specify the file containing coordinates? But I don’t see any such input.
Do I have to create the 'share library'?

Isar.charmchi · March 8, 2023, 18:52

Hi, have you find the answer to your question? Can you please share how you did it?

April 5, 2012, 04:20	User defined particle injection areas	#1
yvonne New Member @p N Join Date: Jan 2010 Location: United States Posts: 27 Rep Power: 16	I want to carry out particle tracking in CFX 13. I need to inject particles only in certain regions of the domain where pressure drops below a threshold value. I have generated this data and I have it in form of coordinates and I need to use this to define the particle injection region.I tried the same by using the pt_injection.ccl subroutine and pt_injection user function. What is not clear to me is how do I import the user function? I went to Insert--> User function; but in that case I have to specify the arguments, results and their respective units. do I need to edit the Library Path? when I import this ccl, another domain ‘tank’ gets created. Each domain gets an additional parameter ‘region’ suffixed under it. Is this where I have to specify the file containing coordinates? But I don’t see any such input. Do I have to create the 'share library'?

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March 8, 2023, 18:52		#2
Isar.charmchi New Member Isar Charmchi Join Date: Aug 2021 Posts: 18 Rep Power: 5	Hi, have you find the answer to your question? Can you please share how you did it?