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

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...

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Published inIndian journal of physics Vol. 90; no. 6; pp. 717 - 724
Main Authors Garai, S., Banerjee, D., Janaki, M. S., Chakrabarti, N.
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.06.2016
Springer Nature B.V
Subjects
Astrophysics and Astroparticles
Density
Dusty plasmas
Energy dissipation
Instability
Joining
Original Paper
Physics
Physics and Astronomy
Plasma
Shear
Shear flow
Stability
Viscosity
Instability
Dusty plasma
47.20.Ft
52.27.Lw
Shear flow
Viscosity gradient
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Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0973-1458
0974-9845
DOI:10.1007/s12648-015-0800-y