[Getdp] rectangular solenoid : current density?

Stefaan Vanheesbeke svhb at pandora.be
Sun Apr 19 23:24:00 CEST 2009


Hi,

I could improve the situation a lot with changing the decision formulas for
 the areas, and with adding a radius to the inner corners. There is still a
 small difference in current density at the corners, but I think this will
 not generate a big error in my simulations. (see current_density.jpg). The
 error changes with the size of the mesh elements.

 The need for the 'delta' variable in the decision formulas seems to be a 
bit
 strange to me. (see solenoid.pro)

 Is someone aware of a simpler method to accomplisch this?

 Stefaan


> ----- Original Message ----- 
> From: <svhb at telenet.be>
> To: <getdp at geuz.org>
> Sent: Saturday, April 18, 2009 11:16 PM
> Subject: [Getdp] rectangular solenoid : current density?
>
>
> Hi,
>
> I'm doing a rectangular solenoid to use in a bigger project. What suprises
> me is that the resulting current density in the post processing is not 
> egal
> and has vectors pointing wrong directions (see jpeg).
>
> I think my equations are correct (I hope). So I don't know where the other
> values come from.
>
> Can someone explain to me?
>
> The included files are the ones I used to generate the jpeg. solenoid.geo 
> is
> the root file, the others are included.
>
> Stefaan
>
>
>
>
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