Title :
A 3-D finite element formulation for calculating Meissner currents in superconductors
Author :
Cordier, C. ; Flament, S. ; Dubuc, C.
Author_Institution :
Caen Univ., France
fDate :
3/1/1999 12:00:00 AM
Abstract :
A three-dimensional (3-D) finite element formulation for calculating Meissner currents in superconductors is presented. The authors have chosen a magnetic vector potential formulation, which also enables them to simulate ferromagnetic shielding. The equations are written so that the problem can be solved by the use of a conjugate gradient algorithm without preconditioning. Numerical results on normal-superconductor junctions and on superconducting lines are compared with analytical solutions.
Keywords :
Maxwell equations; Meissner effect; SQUID magnetometers; conjugate gradient methods; finite element analysis; magnetic shielding; superconducting transmission lines; superconductor-normal-superconductor devices; 3D finite element formulation; Meissner currents; conjugate gradient algorithm; ferromagnetic shielding; magnetic vector potential formulation; normal-superconductor junctions; superconducting lines; superconductors; Boundary conditions; Finite element methods; Josephson junctions; Magnetic analysis; Magnetic flux; Magnetic shielding; Maxwell equations; SQUID magnetometers; Superconducting magnets; Superconductivity;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
