Magnetohydrodynamic Simulation of Kink Instability and Plasma Flow during Sustainment of a Coaxial Gun Spheromak
スポンサーリンク
概要
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Kink instability and the subsequent plasma flow during the sustainment of a coaxial gun spheromak are investigated by three-dimensional nonlinear magnetohydrodynamic simulations. Analysis of the parallel current density λ profile in the central open column revealed that the n = 1 mode structure plays an important role in the relaxation and current drive. The toroidal flow (vt ≈ 37 km/s) is driven by magnetic reconnection occurring as a result of the helical kink distortion of the central open column during repetitive plasmoid ejection and merging.
著者
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Nagata Masayoshi
Department Of Electrical And Electronic Engineering The University Of Tokushima
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Kanki Takashi
Department Of Electrical Engineering Faculty Of Engineering Himeji Institute Of University
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KANKI Takashi
Department of Maritime Science and Technology, Japan Coast Guard Academy, Kure, Hiroshima 737-8512, Japan
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NAGATA Masayoshi
Department of Electrical Engineering and Computer Sciences, University of Hyogo, Himeji, Hyogo 671-2280, Japan
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KAGEI Yasuhiro
Research Organization for Information Science & Technology, Tokai, Ibaraki 319-1106, Japan
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KAGEI Yasuhiro
Research Organization for Information Science & Technology, Tokai, Ibaraki 319-1106, Japan
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