Magnetohydrodynamic Equilibrium and Stability of Spheromak with Spheroidal Plasma-Vacuum Interface
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概要
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The analytic solutions to the Grad-Shafranov equation are obtained for aprolate and an oblate spheroidal plasma by using Hill's vortex model. Effects ofa toroidal magnetic field B. on the MHD equilibrium configurations are investi-gated by using these analytic solutions. When B. is stronger than that of theforce-free configuration, the spheroidal plasmas in a vacutum magnetic field areshown to be unable in the MHD equilibrium. The several physical quantitieson the equilibrittm configuration are evaluated. The spheromak plasma is provedto be unstable if dp/dy/O and d'F/dp'>0 on the magnetic axis. Here p is thepressure and V(y) the volume surrounded by a magnetic surface of y=const.The equilibrium configurations of the spheroidal plasmas by using Hill's vortexmodel are shown to satisfy the above conditions, i.e., to be unstable.
- 社団法人日本物理学会の論文
- 1985-09-15
著者
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KAMITANI Atsushi
Department of Electrical and Information Engineering,Faculty of Engineering,Yamagata University
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TAKIMOTO AKIO
Department of Fermentation Technology, Faculty of Engineering, Osaka University
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KANEKO Shobu
Department of Applied Physics,Faculty of Engineering The University of Tokyo
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Kaneko S
Univ. Tokyo
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Kaneko Shobu
Department Of Applied Physics Faculty Of Engineering The University Of Tokyo
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Takimoto Akio
Bioprocess Program Process R&d Laboratories Shionogi & Co.ltd.
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Takimoto Akio
Central Research Laboratories Matsushita Electric Industrial Co. Ltd.
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Takimoto Akio
Department Of Applied Physics Faculty Of Engineering The University Of Tokyo:central Research Labora
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Takimoto A
Bioprocess Program Process R&d Laboratories Shionogi & Co.ltd.
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Kamitani Atsushi
Department Of Applied Physics Faculty Of Engineering The University Of Tokyo
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Kamitani Atsushi
Department of Applied Physics, Faculty of Engineering, The University of Tokyo
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