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1 Reply
Last post: December 10, 2012 12:47pm UTC
December 10, 2012 11:30am UTC
Maxwell Surface Stress Tensor
Hi all,
I'm trying to calculate the magnetic attraction force between two objects in COMSOL 4.3a, by using Maxwell Stress Tensor.
I found four possible Maxwell functions to calculate the force:
Maxwell upward surface stress tensor,
Maxwell downward surface stress tensor,
Maxwell upward magnetic surface stress tensor and
Maxwell downward magnetic surface stress tensor.
Please can anyone tell me what is the difference between them?
Thank you.
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December 10, 2012 12:47pm UTC in response to Ding Wang
Re: Maxwell Surface Stress Tensor
Hi
up and down are w.r.t the domain (up = outwards, down = into a domain)
But to get the forces it's best to use the domain Force node that defines the equations for you
And then to check the equations COMSOL uses internally (turn on the equation view in the preferences)
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Good luck
Ivar
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