How to apply mesh deformation only to a edge?

shivasluzz · April 22, 2018, 03:39

For example, take a variable area nozzle, in which only the exit diameter opens up.
In this case, we want to apply radial motion only to the edge of exit diameter.
But, cfx allows mesh deformation setup only to the surfaces. Is there a way by which we can move only the edge ?
Thanks.

ghorrocks · April 22, 2018, 08:28

You can make mesh motion a function of position so you can do complicated motions. But I suspect you don't want to do that, if you posted an image of what you want to do I suspect there will be a simple way of doing it.

shivasluzz · April 22, 2018, 08:48

It's like a variable area exhaust nozzle of a jet engine.
Geometry is like a truncated cone.
The smaller diameter of the truncated increases over time.
I will post the image soon.
Thanks :-)

April 22, 2018, 03:39	How to apply mesh deformation only to a edge?	#1
shivasluzz Senior Member sluzzer Join Date: Jul 2014 Posts: 146 Rep Power: 12	For example, take a variable area nozzle, in which only the exit diameter opens up. In this case, we want to apply radial motion only to the edge of exit diameter. But, cfx allows mesh deformation setup only to the surfaces. Is there a way by which we can move only the edge ? Thanks.

April 22, 2018, 08:28		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	You can make mesh motion a function of position so you can do complicated motions. But I suspect you don't want to do that, if you posted an image of what you want to do I suspect there will be a simple way of doing it. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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April 22, 2018, 08:48		#3
shivasluzz Senior Member sluzzer Join Date: Jul 2014 Posts: 146 Rep Power: 12	It's like a variable area exhaust nozzle of a jet engine. Geometry is like a truncated cone. The smaller diameter of the truncated increases over time. I will post the image soon. Thanks :-)