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From: Chris Carlen
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020826
X-Accept-Language: en-us, en
Subject: Re: Problem with magnetic boundary conditions
Date: Sat, 14 Dec 2002 02:55:25 GMT
NNTP-Posting-Date: Fri, 13 Dec 2002 18:55:25 PST
Organization: EarthLink Inc. -- http://www.EarthLink.net
John Woodgate wrote:
> But it *assumes* a homogenous medium. At least Ampere's/Laplace's
> Theorem does, and it is an alternative statement of B-S, AIUI.
Oops, that's probably the problem right there. I'll have to look to see
if the introduction to the Biot-Savart Law included any mention of this.
If not I'll have to send a note to the author.
It would seem then that the inclusion of a spatial inhomogeneity of
permeability into a calculation of magnetic field complicates things
tremendously. I suppose that's why I hear of finite element methods
being applied to map fields in real world engineering problems dealing
with designing magnets with specific (or at least known) field shapes?
Christopher R. Carlen
Suse 8.1 Linux 2.4.19
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