[Getdp] Has anybody a 3D magneto static or magneto dynamic example?
Kubicek Bernhard
Bernhard.Kubicek at arsenal.ac.at
Mon Sep 17 11:58:32 CEST 2007
Have you had a look at
http://www.geuz.org/getdp/wiki/TorusCurrent3D
, username getdp password wiki?
For your second question, it is possible.
We have a 3d field of conductivities, use current flow boundary conditions (one surface as current inflow, like in the thermal examples, another surface as potential zero).
>From the resulting current the magnetic field is calculated.
It is usefull to use a coupledt formulation for that.
i cannot send you the full example right now, because my linux is in a nonequilibrium state, and needs to thermalize..
nice greetings,
bernhard
-----Ursprüngliche Nachricht-----
Von: getdp-bounces at geuz.org [mailto:getdp-bounces at geuz.org] Im Auftrag von Egmont Schreiter
Gesendet: Freitag, 7. September 2007 14:09
An: getdp at geuz.org
Betreff: [Getdp] Has anybody a 3D magneto static or magneto dynamic example?
Dear users,
for doing only little steps I tried to expand the core.geo example to
3D. Doing so with geometric is not the problem. The last days I also
start to read the first chapters of the referenced book "computational
electromagnetism" (http://www.em.tut.fi/~bossavit/), it was somewhere in
the list, wiki or homepage recommended/referenced.
Now I struggle with 3D formulation of a magneto static problem. Has
anyone a example in 3D? I think it would be helpful to have an extended
core.geo in 3d in the wiki.
I attach my core_3d.geo with a definition.pro file and a function.geo
file with a defined function to rotate. meshing works, but i know there
are some missing physical in the file.
One question is about the source of the field in 3D: could one define j
(current density) in just a cutting surface in the coil and specify
sigma the conductance, or should one define a vector field of current
rotating in the coil? Are both sources possible?
Thank you
E. Schreiter
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