Hostname: page-component-7bb8b95d7b-s9k8s Total loading time: 0 Render date: 2024-09-12T14:50:04.023Z Has data issue: false hasContentIssue false
  • English
  • Français

Numerical simulation of inductive measurement of critical current density in HTS: high-performance method for solving shielding current equations

Published online by Cambridge University Press:  20 December 2006

A. KAMITANI ,
S. IKUNO  and
H. NAKAMURA
A. KAMITANI
Affiliation:
Department of Informatics, Yamagata University, Johnan 4-3-16, Yonezawa, Yamagata 992-8510, Japan
S. IKUNO
Affiliation:
School of Computer Science, Tokyo University of Technology, Katakura 1440-1, Hachioji, Tokyo 192-0982, Japan
H. NAKAMURA
Affiliation:
Theory and Computer Simulation Center, National Institute for Fusion Science, Oroshi-cho 322-6, Toki, Gifu 509-5292, Japan
Get access Rights & Permissions [Opens in a new window]

Abstract

A numerical code has been developed for analyzing the time evolution of the shielding current density in the high-temperature superconductor (HTS) bulk. In the code, the shielding current equations are discretized by means of the element-free Galerkin method and the resulting nonlinear system is solved by use of the pseudo Newton method with a variable relaxation factor. By means of the code, the shielding current density is calculated in cases where the ac current flows in a coil placed just above the HTS. The voltage induced in the coil is evaluated as a function of time and its spectral analysis is performed. The results of computations show a qualitative agreement with Mawatari's experimental results.

Type
Papers
Information
Journal of Plasma Physics , Volume 72 , Issue 6 , December 2006 , pp. 1061 - 1064
Copyright
2006 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)