Finite element analysis of pulsed field magnetization process in a cylindrical bulk superconductor

Kazuhiro Kajikawa, R. Yokoo, K. Tomachi, Keiji Enpuku, K. Funaki, H. Hayashi, H. Fujishiro

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The magnetization properties in a cylindrical superconductor with an infinite length exposed to a pulsed external magnetic field are numerically evaluated by means of a coupled finite element method. In order to estimate the distributions of magnetic field and temperature inside the superconductor, magnetic diffusion and heat balance equations are alternately and iteratively solved at each time step. It is assumed that the superconductor has a transport property represented by the power-law model, where the critical current density depends on the local temperature. The adiabatic condition for the thermal analysis is also used, so that the temperature rise comes from the local energy dissipation due to the magnetic flux motion. The influences of the strength of external applied field and the initial temperature in the superconductor on the final trapped magnetic field are investigated toward an optimal design of bulk superconductor magnet.

Original languageEnglish
Pages (from-to)1494-1497
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume468
Issue number15-20
DOIs
Publication statusPublished - Sep 15 2008

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Superconducting materials
Magnetization
Finite element method
magnetization
Magnetic fields
trapped magnetic fields
magnetic diffusion
adiabatic conditions
heat balance
Temperature
temperature
Magnetic flux
magnetic fields
Transport properties
Thermoanalysis
Magnets
magnetic flux
critical current
Energy dissipation
finite element method

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Finite element analysis of pulsed field magnetization process in a cylindrical bulk superconductor. / Kajikawa, Kazuhiro; Yokoo, R.; Tomachi, K.; Enpuku, Keiji; Funaki, K.; Hayashi, H.; Fujishiro, H.

In: Physica C: Superconductivity and its Applications, Vol. 468, No. 15-20, 15.09.2008, p. 1494-1497.

Research output: Contribution to journalArticle

Kajikawa, Kazuhiro ; Yokoo, R. ; Tomachi, K. ; Enpuku, Keiji ; Funaki, K. ; Hayashi, H. ; Fujishiro, H. / Finite element analysis of pulsed field magnetization process in a cylindrical bulk superconductor. In: Physica C: Superconductivity and its Applications. 2008 ; Vol. 468, No. 15-20. pp. 1494-1497.
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