[Table of Contents]

Plasma and Fusion Research

Volume 8, 2405078 (2013)

Regular Articles

Numerical Method for Analyzing Shielding Current Density in HTS Film with Multiple-Layer/Multiply-Connected Structure
Atsushi KAMITANI, Teruou TAKAYAMA, Soichiro IKUNO1) and Hiroaki NAKAMURA2)
Yamagata University, Yamagata 992-8510, Japan
1)
Tokyo University of Technology, Tokyo 192-0982, Japan
2)
National Institute for Fusion Science, Gifu 509-5292, Japan
(Received 22 November 2012 / Accepted 26 April 2013 / Published 19 June 2013)

Abstract

The governing equations of the shielding current density j in a high-temperature superconducting film are formulated for the case where the film contains cracks or holes. Since the derived equations cannot be solved only with the boundary condition j · n = 0 on the film surface, additional conditions are also derived. A numerical method is proposed for solving the initial-boundary-value problem of the equations and its performance is evaluated by means of the numerical simulation of the permanent magnet method.

Keywords

critical current density, finite element method, high-temperature superconductor, integrodifferential equation, Newton method

DOI: 10.1585/pfr.8.2405078

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This paper may be cited as follows:

Atsushi KAMITANI, Teruou TAKAYAMA, Soichiro IKUNO and Hiroaki NAKAMURA, Plasma Fusion Res. 8, 2405078 (2013).