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Permanent magnet constitutive relation

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Millicent Chan

Millicent Chan

September 9, 2010 5:43am UTC

Permanent magnet constitutive relation

Hey guys!

I'm trying to model a system of permanent magnets and was just wondering what the constitutive relation should be used: the magnetisation one B = \mu_0H + \mu_0M, or the remanent flux one B = µ_0µ_rH + ???B_r ?
From what I've seen, both seem to be used in the literature...

Thanks for the help :)
- Milly

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Ivar Kjelberg

Ivar Kjelberg
Moderator

September 10, 2010 8:43am UTC in response to Millicent Chan

Re: Permanent magnet constitutive relation

Hi

both are equivalent if you apply the physics correctly and you input the correct values, I mostly use the Magnetisation fr permanent magnets, as it's often what I have as "correct" specified values

--
Good luck
Ivar

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