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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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How to feed a flat circular coil in 3D

Posted 09.10.2015, 14:25 GMT-4 Low-Frequency Electromagnetics Version 4.3 4 Replies

Orlando René Del Sol Puig
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I want to feed a flat circular coil with 0.5 A using Magnetic Physic, also I have doubts about the boundary conditions that I have to set . My main goal is to generate eddy currents in an aluminum plate. I have made different attempts but always the solution diverges, I have used the option of single-turn coil domaim.
4 Replies Last Post 14.10.2015, 19:53 GMT-4
Sergei Yushanov Certified Consultant
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Posted: 9 years ago 09.10.2015, 14:55 GMT-4
Orlando,

Try to assign small conductivity to air, say 1[S/m].

Regards,
Sergei
Orlando, Try to assign small conductivity to air, say 1[S/m]. Regards, Sergei
Orlando René Del Sol Puig
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Posted: 9 years ago 09.10.2015, 18:53 GMT-4
Thank you for your answer.

I did what you told me and I achieved to simulate the system but I failed to establish the influence of the coil on the aluminum plate, I guess I have difficulty in establishing the boundary conditions. What do you recomend me??
Thank you for your answer. I did what you told me and I achieved to simulate the system but I failed to establish the influence of the coil on the aluminum plate, I guess I have difficulty in establishing the boundary conditions. What do you recomend me??
Sergei Yushanov Certified Consultant
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Posted: 9 years ago 12.10.2015, 07:48 GMT-4
Orlando,

There is an example problem with step by step instructions for the analysis of eddy currents in the aluminum conductor placed above the coil:

www.comsol.com/model/download/216751/models.acdc.multiturn_coil_asymmetric_conductor.pdf


Regards,
Sergei
Orlando, There is an example problem with step by step instructions for the analysis of eddy currents in the aluminum conductor placed above the coil: http://www.comsol.com/model/download/216751/models.acdc.multiturn_coil_asymmetric_conductor.pdf Regards, Sergei
Orlando René Del Sol Puig
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Posted: 9 years ago 14.10.2015, 19:53 GMT-4
I have some problems to solve my simmulation, the software gives me the following answer:
Failed to find a solution.
Divergence of the linear iterations.
Returned solution is not converged.

I dont know what is the reason.
I have some problems to solve my simmulation, the software gives me the following answer: Failed to find a solution. Divergence of the linear iterations. Returned solution is not converged. I dont know what is the reason.

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