Shear flow driven instability in an incompressible dusty plasma with a density dependent viscosity

被引：7

作者：

Garai, S. ^{[1
]}

Banerjee, D. ^{[2
]}

Janaki, M. S. ^{[1
]}

Chakrabarti, N. ^{[1
]}

机构：

[1] Saha Inst Nucl Phys, 1 AF Bidhannagar, Kolkata 700064, India

[2] Inst Plasma Res, Bhat 382428, Gandhinagar, India

来源：

INDIAN JOURNAL OF PHYSICS | 2016年 / 90卷 / 06期

关键词：

Dusty plasma; Shear flow; Viscosity gradient; Instability; ACOUSTIC SOLITARY WAVES; LIQUID; TEMPERATURE; PARTICLES; MODES;

D O I：

10.1007/s12648-015-0800-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The influence of viscosity gradient ( via density) in an incompressible dusty plasma is analyzed. It is shown that for a well known dusty plasma model, the density dependence of viscosity leads to shear driven instability in a weakly coupled dusty plasma. The inhomogeneous viscous force coupled with density inhomogeneity in presence of velocity shear is responsible for this instability. For any finite value of shear flow parameter the viscous gradient force surpasses the viscous dissipation leading to instability.

引用

页码：717 / 724

页数：8

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