Dissipative kinetic Alfven solitary waves resulting from viscosity

被引：2

作者：

Choi, C-R. ^{[1
]}

Woo, M-H. ^{[2
]}

Kang, S-B. ^{[1
]}

Min, K-W. ^{[1
]}

Hwang, J. ^{[3
]}

Park, Y-D. ^{[3
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea

[2] Natl Fus Res Inst, Taejon 305333, South Korea

[3] Korea Astron & Space Sci Inst, Taejon 305348, South Korea

来源：

PHYSICS OF PLASMAS | 2013年 / 20卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

ACCELERATION; STABILITY;

D O I：

10.1063/1.4834495

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：

Nonlinear small-amplitude kinetic Alfven solitary waves (KASWs) are investigated with their "anomalous" kinetic viscosity effect on electrons. It is found that the structure of a hump-type KASW solution develops into a shock-type (or double layer) KASW solution for large amplitude KASWs when viscosity exists. For small amplitude KASWs, the Korteweg-de Vries (KdV) equation with an approximate pseudopotential was solved, and it is found that the hump-type KASWs develop into oscillating shock-type (kink-type) KASWs. It is also found that the oscillating scale of this structure is related to the propagation velocity and plasma beta, while the damping scale is inversely proportional to the viscosity. (C) 2013 AIP Publishing LLC.

引用

页数：6

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