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How to simulate superconductor with R-J dependency?

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Hello,

I'm trying to simulate a superconductor with an R-J (resistance-current density) dependency with a critical current without any luck. I tried using the electrical-currents model by defining a conductivity-current density dependency but the solver says it cant solve it because it's a circular solution: it cant solve and use J from the dependency it gave it.
I have also tried using the magnetic field formulation but because my geometry isn't simple, I find it hard to define the magnetic field that will induct the wanted current.

Any advice?

0 Replies Last Post 24 avr. 2017, 08:10 UTC−4
COMSOL Moderator

Hello Ilan Hakimi

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