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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 The information provided may be out of date.

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magnetics (mf) question

Posted Jun 24, 2011, 11:01 a.m. EDT Low-Frequency Electromagnetics Version 4.1 1 Reply

David Segal
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Hi

in a magnetics (mf) problem If I have a conducting domain with a varying cross section

and I wish to inject a given current as an initial condition.

How do I define the external current density so that I have the same current in any cross section?

thanks

David
1 Reply Last Post Jun 28, 2011, 7:02 a.m. EDT
Akmal
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Posted: 1 decade ago Jun 28, 2011, 7:02 a.m. EDT
hi,

on ec there is node called external current density, there is also boundary current source.
just give 1[A]/boundaryarea[mm^2]. in every cross section the current should be the same, but current density not.

regards
akmal
hi, on ec there is node called external current density, there is also boundary current source. just give 1[A]/boundaryarea[mm^2]. in every cross section the current should be the same, but current density not. regards akmal

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