<RESEARCH REPORT>Numerical Study of Current-Driven Collisional Drift and Alfven Instabilities in a Sheared Magnetic Field

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概要

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• A set of coupled eigenmode equations for drift and shear Alfven mode in a sheared magnetic field is solved numerically including effects of parallel current, the full ion dynamics and electron-ion collisions. Detailed studies are made on the eigenmode structures of both the modes and combined effects of current and finite-β. An outstanding result is that the current-driven drift mode shows, at some moderate β value, a peculiarity in dispersion and its eigenmode structure is deformed to a shspe different from the usual one, which means the strong coupling of drift mode to shear Alfven mode due to the combined effects. In the most cases except this, the effects of finite-β and collisions are found to be stabilizing.

• 核融合科学研究所の論文

著者

• Nishikawa Kenichi

  Research Information Center Institute Of Plasma Physics Nagoya University

• Nishikawa Kenichi

  Research Information Center Institute Of Plasma Physics Nagoya University:(present Address)japan Ato

関連論文

• Numerical Study of Current-Driven Collisional Drift and Alfven Instabilities in a Sheared Magnetic Field
• Tearing Modes in a Current Sheet with Weak Normal Magnetic Field

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