Non-modal analysis of the diocotron instability for cylindrical geometry with conducting boundary

被引：11

作者：

Mikhailenko, V. V. ^{[1
]}

Kim, Jin Seok ^{[1
]}

Jo, Younghyun ^{[1
]}

Mikhailenko, V. S. ^{[2
,3
]}

Lee, Hae June ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Elect Engn, Pusan 609735, South Korea

[2] Kharkov Natl Univ, UA-61108 Kharkov, Ukraine

[3] Kharkiv Natl Automobile & Highway Univ, UA-61002 Kharkov, Ukraine

来源：

PHYSICS OF PLASMAS | 2014年 / 21卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

STABILITY; PLASMA;

D O I：

10.1063/1.4875341

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The temporal evolution of the linear diocotron instability of a cylindrical annular plasma column surrounded by a conducting boundary has been investigated by using the methodology of the cylindrical shearing modes. The linear solution of the initial and boundary-value problems is obtained which is valid for any time at which linear effects dominate. The solution reveals that the initial perturbations of the electron density pass through the stage of the non-modal evolution when the perturbation experiences spatio-temporal distortion pertinent to the considered geometry of the electron column. The result is confirmed by a two-dimensional cylindrical particle-in-cell simulation. (C) 2014 AIP Publishing LLC.

引用

页数：8

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