Rayleigh-Taylor instability in dusty plasma experiment

被引：28

作者：

Avinash, K. ^{[1
]}

Sen, A. ^{[2
]}

机构：

[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India

[2] Inst Plasma Res, Bhat 382424, Gandhinagar, India

来源：

PHYSICS OF PLASMAS | 2015年 / 22卷 / 08期

关键词：

KELVIN-HELMHOLTZ INSTABILITY; ACOUSTIC-WAVES; MODES;

D O I：

10.1063/1.4928444

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 stability of a stratified dust cloud levitated in an anodic plasma is studied in the weakly and strongly coupled dust regimes. It is shown that the cloud is predominantly unstable to a Rayleigh-Taylor (RT) instability driven by a component of the ambient gravity in a direction opposite to the direction of dust density stratification in the cloud. The elasticity of the strongly coupled dust is shown to set a threshold for the RT instability, which is consistent with experimental observations. (C) 2015 AIP Publishing LLC.

引用

页数：4

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