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Strong Localization of the Density of Power Losses in Type-II Superconducting Wires

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Version 2 2020-06-04, 09:12
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journal contribution
posted on 2020-06-04, 09:12 authored by HS Ruiz, A Badia-Majos, YA Genenko, SV Yampolskii
A round straight superconducting wire has been used as numerical prototype for pursuing a comprehensive study on the local distribution of current and the density of power losses, attained by the simultaneous action of an ac transport current and an oscillating transverse magnetic field. The numerical simulations have been performed within the quasi-steady approach of the critical state theory, including virgin and premagnetized wires. A wide variety of shapes for the flux fronts characterizing the local dynamics of the electromagnetic quantities across the section of the wire has been revealed. Under special conditions, flux fronts characterized either by the so-called “field-like”, or “current-like ” shapes are shown, with the occurrence of multiple domains of current flow detached by thin lines acting as boundaries between the critical values Ic and - Ic . Despite the lack of symmetry for attaining at least an intuitive definition of the shape of the flux front, a universal pattern of the distribution of magnetic flux density has been identified. Also, a strong asymmetric localization of the density of power losses has been envisaged, as long as synchronous electromagnetic excitations are used.

Funding

This work was supported in part by the Spanish MINECO and the European FEDER program (under Project MAT2011-22719 and Project ENE2011-29741), and by the DGA Grant T12/2011.

History

Citation

H. S. Ruiz, A. Badía-Majós, Y. A. Genenko and S. V. Yampolskii, "Strong Localization of the Density of Power Losses in Type-II Superconducting Wires," in IEEE Transactions on Applied Superconductivity, vol. 23, no. 3, pp. 8000404-8000404, June 2013, Art no. 8000404, doi: 10.1109/TASC.2012.2232695.

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Engineering

Version

  • AM (Accepted Manuscript)

Published in

IEEE Transactions on Applied Superconductivity

Volume

23

Issue

3

Pagination

8000404

issn

1051-8223

Acceptance date

2012-12-03

Copyright date

2012

Language

en

Publisher version

https://ieeexplore.ieee.org/abstract/document/6376130

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