[Getdp] Questions about GetDP

[Raymond Michaux]

Raymond Michaux (raymond.michaux at freesbee.fr)

Hello gentlemen,

I am a retired engineer and I just recently discovered GetDP on the web. I think it's a great idea to propose a unified workshop for the treatment of partial derivatives and integral equations and to make GetDP available on the web. Congratulations !

I have two questions :

1. I checked first the magnetostatic exemple without any problem. I am now trying to make a simple model with a magnet in an airgap for comparison with analytical solution. I meet some difficulties with FunctionSpace for boundary conditions. For a 2D Magnetic Potential vector solution, the possible boundary conditions are

 values of potential vector A imposed

 magnetic induction B = curl A normal to boundary

 and perhaps floating constant A.

For the second condition (B normal) I can't make the difference between BF_CurlEdge and BF_CurlPerpendicularEdge and I didn't find any instruction to indicate that the tangential component of curl A is 0 (perhaps CompX[BF_CurlEdge] ????)

2. Later, I would like to make a stepwise analysis of a permanent magnet motor. Is ref [67] in Christophe Geuzaine thesis (Ferreira da Luz and all.;) available by internet? The use of periodicity conditions and of a moving band seem very promising

Thank you for your help
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