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model eye and its saccades

Posted 18 avr. 2013, 19:19 UTC−4 Mesh Version 4.2a 2 Replies

Karthik Murali
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Hi,

I'm trying to model the eye and have it oscillate about it's axis with an angular velocity.

However, when I use moving mesh to create movement, I can't seem to get it to rotate about it's axis (the origin). It seems to oscillate just in the y-direction. I'm relatively new to Comsol so any kind of help will be great!

I've attached my mph file too.

Thanks!
Karthik
2 Replies Last Post 22 avr. 2013, 12:53 UTC−4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 19 avr. 2013, 15:47 UTC−4
Hi

you might want to define a cylindrical coordinate and define your motion w.r.t. that one
(Model - Definitions - Coordinate Systems)

--
Good luck
Ivar
Hi you might want to define a cylindrical coordinate and define your motion w.r.t. that one (Model - Definitions - Coordinate Systems) -- Good luck Ivar
Nagi Elabbasi Facebook Reality Labs
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Posted: 1 decade ago 22 avr. 2013, 12:53 UTC−4
Hi Karthik,

The problem is that you are applying a constant circumferential velocity. In order to get a rotation the applied velocity should linearly increase with distance from the center.

Nagi Elabbasi
www.veryst.com
Hi Karthik, The problem is that you are applying a constant circumferential velocity. In order to get a rotation the applied velocity should linearly increase with distance from the center. Nagi Elabbasi www.veryst.com

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