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Kinetic effects of E × B sheared flow on the hydrodynamic drift instabilities

V V Mikhailenko, V S Mikhailenko, Hae June Lee, M E Koepke2013年Plasma Physics and Controlled FusionIF 2.2出版社

The temporal evolution of the hydrodynamic ion temperature gradient instability and resistive hydrodynamic drift instability of plasma flow with velocity shear is analytically investigated. The non-modal kinetic theory (Mikhailenko et al 2011 Phys. Plasmas18 062103) is applied which uses the method of shearing modes (or so-called non-modal approach) as its foundation. In this theory, the velocity shear reveals as the time-dependent effect of the finite Larmor radius in the integral equation for the electrostatic potential, and resulted in the decrease with time the frequencies and the growth rates of the instabilities.

日本語訳

要旨: 流体力学的不安定性であるイオン温度勾配不安定性と抵抗性流体力学的不安定性であるドリフト不安定性の時間発展を、速度シアを伴う流れにおいて調査した。非モーダル運動論(Mikhailenkoら、Phys. Plasmas 18, 062103(2011))を適用し、これはシア流の方法を基礎としている。この理論では、速度シアは静電ポテンシャルの積分方程式における有限ラーモア半径効果として時間依存的に現れ、その結果、不安定性の周波数と成長率は時間とともに減少することが示された。

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