Re: [femm] Superconductor model

[Agnaldo Souza Pereira <agnaldo@xxxxxxxxxx>]

Vencislav,
I am a brazilian physicist and my MSc and DSc thesis 
deal with the subject of simulating superconductors with 
a finite elemnt program.
Someone have said that you could simulate a type I 
superconductor by assigning a very low permeability to 
your material. That's true, something round 0.0001 works 
well.
But you can also simulate a type II superconductor: 
I have developed a technique to calculate the B(H)curve 
for a type II superconductor. If you can read 
portuguese, I can send you a owrk that I have done 
tthree yers ago. If don't I can make a summary in 
english and send it later. 
Anyway, you have below some refernces of papers I have 
published using this technique:
IEEE Transactions on Magnetics, volume. 36, no 5 , pag 
3693, setembro de 2000.
"Hybrid Bearing for Induction Machine with Controlled 
Electromagnetic Positioning and Superconducting 
Levitation"
R. Nicolsky, A. S. Pereira, D. F. B. David, J. A. 
Santisteban, R. M.
Stephan, A. Ripper, e R. de Andrade Jr.,

Physica C volume 341-348,pag 2509, dezembro de 2000.
"Development of hybrid bearing system with thrust 
superconducting magnetic bearing and radial active 
eletromagnetic bearing"
R. Nicolsky, A. S. Pereira, R. de Andrade Jr., D. F. B. 
David, J. A.
Santisteban, R. M. Stephan, A. Ripper, W. Gawalek, T. 
Habisreuther, e T. Strasser.

IEEE Transactions on Applied Superconductivity 9, 
964-967 junho de 1999.
"Superconducting Axial Bearing for Induction Machines 
with Active Radial Magnetic Bearing"
R. Nicolsky, Y. Gorelov, A. S. Pereira, D. F. B. David, 
A. Santisteban,
R. M. Stephan, A. Ripper, R de Andrade Jr., W. Gawalek, 
T. Habisreuther, e T. Strasser.



> Hello,
>
> this is my first question in this group:
>
> how do I make a model of superconductor in femm?
>
> I'm trying to see how will magnetic field behave
> when there is superconductor, since we know that
> superconductors do not let magnetic field lines
> go through it.
>
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>
>
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>
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