Re: [femm] How is 5 Tesla possible?

[David Meeker <dmeeker@xxxxxxxx>]

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@xxxxxxxxxxxxxxx
> 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@xxxxxxxx
www: http://femm.berlios.de/dmeeker