Numerical simulation of levitation force and magnetic field in levitated bulk superconductor

Y. Komano; K. Sawa; Y. Iwasa; N. Yamachi; M. Murakami; I. Hirabayashi

doi:10.1016/j.physc.2004.02.198

Numerical simulation of levitation force and magnetic field in levitated bulk superconductor

Y. Komano, K. Sawa, Y. Iwasa, N. Yamachi, M. Murakami, I. Hirabayashi

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

It is known that the levitation of bulk superconductors could successfully be controlled using a Bi2223 superconducting electromagnet. In the previous study, we directly measured the levitation force and magnetic field on the surface of bulk superconductors levitated by this electromagnet. And the shielding current distribution was estimated from levitation force. But magnetic field was not in agreement with its simulation from this shielding current distribution. In the present study, we improved the formulas, and the shielding current distribution was estimated from trapped-field distribution. Experimental results of levitation force and magnetic field by the shielding current were compared with simulation from this shielding current distribution.

Original language	English
Pages (from-to)	729-733
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2004.02.198
Publication status	Published - 2004 Oct 1

Keywords

Bean model
HTS bulk
Levitation force
Shielding current distribution
Trapped magnetic field

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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abstract = "It is known that the levitation of bulk superconductors could successfully be controlled using a Bi2223 superconducting electromagnet. In the previous study, we directly measured the levitation force and magnetic field on the surface of bulk superconductors levitated by this electromagnet. And the shielding current distribution was estimated from levitation force. But magnetic field was not in agreement with its simulation from this shielding current distribution. In the present study, we improved the formulas, and the shielding current distribution was estimated from trapped-field distribution. Experimental results of levitation force and magnetic field by the shielding current were compared with simulation from this shielding current distribution.",

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AU - Komano, Y.

AU - Sawa, K.

AU - Iwasa, Y.

AU - Yamachi, N.

AU - Murakami, M.

AU - Hirabayashi, I.

PY - 2004/10/1

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N2 - It is known that the levitation of bulk superconductors could successfully be controlled using a Bi2223 superconducting electromagnet. In the previous study, we directly measured the levitation force and magnetic field on the surface of bulk superconductors levitated by this electromagnet. And the shielding current distribution was estimated from levitation force. But magnetic field was not in agreement with its simulation from this shielding current distribution. In the present study, we improved the formulas, and the shielding current distribution was estimated from trapped-field distribution. Experimental results of levitation force and magnetic field by the shielding current were compared with simulation from this shielding current distribution.

AB - It is known that the levitation of bulk superconductors could successfully be controlled using a Bi2223 superconducting electromagnet. In the previous study, we directly measured the levitation force and magnetic field on the surface of bulk superconductors levitated by this electromagnet. And the shielding current distribution was estimated from levitation force. But magnetic field was not in agreement with its simulation from this shielding current distribution. In the present study, we improved the formulas, and the shielding current distribution was estimated from trapped-field distribution. Experimental results of levitation force and magnetic field by the shielding current were compared with simulation from this shielding current distribution.

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KW - Levitation force

KW - Shielding current distribution

KW - Trapped magnetic field

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