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# Re: [femm] How is 5 Tesla possible?

- To: femm@yahoogroups.com
- Subject: Re: [femm] How is 5 Tesla possible?
- From: David Meeker <dmeeker@ieee.org>
- Date: Mon, 13 Jan 2003 12:24:59 -0500
- References: <avn680+1sbr@eGroups.com> <3E1F3465.4050201@ieee.org> <5.1.0.14.0.20030113140247.01dc0b20@staff-mailin.lboro.ac.uk> <000201c2bb23$45715560$497b5142@robertmacy>
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`It's hard to say what's going on w/out an example.`
`However, the usual caveats apply. Like in the magnetostatic analyses, the program extrapolates linearly off the end of the B-H curve. Funny results if you rely heavily on extrapolating the B-H curve, rather than interpolating between defined points.`
`Anyhow, thanks for the posts. This is why I put up this development version--to flush out odd behaviors before a "release" version with the nonlinear time harmonic solver.`
`Dave.`
`Robert Macy wrote:`

> `Just downloaded and ran it. Got 8 to 9 Teslas in the tight areas.`
> `??`
> `- Robert -`

>     ----- Original Message -----
>     From: Keith Gregory
>     To: femm@yahoogroups.com
>     Sent: Monday, January 13, 2003 6:11 AM
>     Subject: Re: [femm] How is 5 Tesla possible?

> `
> Robert,`
> `Harmonic problems (i.e. where frequency is not zero) are solved linearly by
> FEMM, it doesn't include saturation so any value of B can be achieved. Dave
> has recently produced a development version which can deal with non-linear
> problems, which is (I think) currently version 3.3alpha2.`

>     http://femm.berlios.de/femm33src.zip
>     http://femm.berlios.de/femm33bin.exe

> `Try that.`
> `Keith.`

``

    --
    David Meeker
    email: dmeeker@ieee.org
    www: http://femm.berlios.de/dmeeker

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  - Re: [femm] How is 5 Tesla possible?
    - From: Keith Gregory <k.gregory@lboro.ac.uk>
  - Re: [femm] How is 5 Tesla possible?
    - From: "Robert Macy" <macy@california.com>

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