[Getdp] Non-linear Wiki review

[Jasper]

I remember having the same problem when playing with this a year ago.
I think the problem is that the BH-curve of the steel is not
monotonically increasing (first four values). With a monotonically
increasing BH-curve the example converges with a scalar potential.
I don't know if this is an error in the table values for 1020 steel...
Hope this helps. Best regards,

Jasper

On 7/23/07, janvrot at infolink.com.br <janvrot at infolink.com.br> wrote:
> Hello
>
> Some time ago I contributed to the Wiki with the non-linear magnetostatic example, gathering
> information from Christophe Geuzaine, Johan Gyselinck and others.
>
> Now I'm back to getdp and I restarted reviewing that Wiki example.
>
> I noticed that the non-linear case with the Newton scheme for the vector potential converges to
> reasonable results in few iterations, while for the scalar potential the converge was bad, specially
> for high magnetization levels, where the BH curve is most non-linear, giving in one of the cases bad
> results, even with a 1e-6 error convergence.
>
> So I wonder if I  messed up the received suggestions in the preparation of the presented examples.
> Could someone kindly check them? Johan? Christophe?
>
> Thanks
> Janvrot
>
>
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