학술논문

Numerical and analytical solutions for the dynamic stability of edge cooled superconducting tapes using two dimensional variational principles
Document Type
Periodical
Source
IEEE Transactions on Magnetics IEEE Trans. Magn. Magnetics, IEEE Transactions on. 27(2):2120-2123 Mar, 1991
Subject
Fields, Waves and Electromagnetics
Stability analysis
Superconducting films
Magnetic analysis
Superconducting magnets
Magnetic flux
Conductors
Steady-state
Maxwell equations
Cooling
Thermal conductivity
Language
ISSN
0018-9464
1941-0069
Abstract
The dynamic stability of an edge cooled superconducting tape is a nonlinear, 3-D magnetothermal problem. In this analysis, a 2-D linearized version is solved using variational principles. To model the physical behavior of the conductor accurately, trial functions are carefully chosen subject to the exact boundary conditions and a numerical solution is obtained. This solution is compared to a recently obtained analytic solution and the 1-D solution obtained by H.R. Hart Jr. (1968). The 2-D analysis indicates that the finite thermal diffusion in the superconductor can play a significant role for w/sub o//d/sub SC/