Ruiz, H. S. ; Badía-Majós, A. ; Genenko, Yuri A. ; Yampolskii, Sergey V. (2013)
Strong Localization of the Density of Power Losses in Type-II Superconducting Wires.
In: IEEE Transactions on Applied Superconductivity, 23 (3)
doi: 10.1109/TASC.2012.2232695
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
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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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Ruiz, H. S. ; Badía-Majós, A. ; Genenko, Yuri A. ; Yampolskii, Sergey V. |
| Art des Eintrags: | Bibliographie |
| Titel: | Strong Localization of the Density of Power Losses in Type-II Superconducting Wires |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Januar 2013 |
| Verlag: | The IEEE Council on Superconductivity |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | IEEE Transactions on Applied Superconductivity |
| Jahrgang/Volume einer Zeitschrift: | 23 |
| (Heft-)Nummer: | 3 |
| DOI: | 10.1109/TASC.2012.2232695 |
| Kurzbeschreibung (Abstract): | Print Request Permissions Save to Project 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. |
| Freie Schlagworte: | Critical state, power losses, superconducting wires |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung |
| Hinterlegungsdatum: | 27 Jun 2013 08:39 |
| Letzte Änderung: | 11 Jul 2018 13:16 |
| PPN: | |
| Sponsoren: | 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. |
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