How may I show vortex in CFX?

Benjamin · July 6, 2010, 06:35

Hello
I'm doing my internship and I'm about to show vortex core region. How can I do?
and what different criterion mean (absolute helicity, eigen helicity, lambda 2 criterion, ....)
What have I to choose?

Thank you

Benjamin

ghorrocks · July 6, 2010, 19:48

I think there is a CFD-Post variable designed to find vortex cores - have a look in the tutorials or the CFD-Post documentation.

Benjamin · July 7, 2010, 03:44

I did it, but it's just definition of each variable

ghorrocks · July 7, 2010, 07:27

Sounds like a trip to the library is required. That, or some fancy googling.

Jade M · July 26, 2010, 16:54

Benjamin, I agree with you that the manual is very limited, as it is for many topics. I do not believe there is a tutorial on the topic either. I will respond if I find anything, as I am interested in this as well. Good luck!

Jade M · July 26, 2010, 17:53

Benjamin,

There is a tutorial at http://www1.ansys.com/customer/conte...uent/flcfd.pdf

This looks promising. Check out Step 10.

I would be very interested in anything that you might find as well.

July 6, 2010, 06:35	How may I show vortex in CFX?	#1
Benjamin New Member Benjamin R Join Date: Jul 2010 Posts: 2 Rep Power: 0	Hello I'm doing my internship and I'm about to show vortex core region. How can I do? and what different criterion mean (absolute helicity, eigen helicity, lambda 2 criterion, ....) What have I to choose? Thank you Benjamin

July 26, 2010, 17:53	Tutorial	#6
Jade M Senior Member Join Date: Feb 2010 Posts: 148 Rep Power: 17	Benjamin, There is a tutorial at http://www1.ansys.com/customer/conte...uent/flcfd.pdf This looks promising. Check out Step 10. I would be very interested in anything that you might find as well.

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July 6, 2010, 19:48		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,872 Rep Power: 144	I think there is a CFD-Post variable designed to find vortex cores - have a look in the tutorials or the CFD-Post documentation.

July 7, 2010, 03:44		#3
Benjamin New Member Benjamin R Join Date: Jul 2010 Posts: 2 Rep Power: 0	I did it, but it's just definition of each variable

July 7, 2010, 07:27		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,872 Rep Power: 144	Sounds like a trip to the library is required. That, or some fancy googling.

July 26, 2010, 16:54		#5
Jade M Senior Member Join Date: Feb 2010 Posts: 148 Rep Power: 17	Benjamin, I agree with you that the manual is very limited, as it is for many topics. I do not believe there is a tutorial on the topic either. I will respond if I find anything, as I am interested in this as well. Good luck!