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Author Garai, S. ♦ Janaki, M. S. ♦ Chakrabarti, N.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ COMPRESSIBILITY ♦ DISPERSION RELATIONS ♦ DUSTS ♦ ELECTRONS ♦ HYDRODYNAMIC MODEL ♦ OSCILLATION MODES ♦ PLASMA ♦ PLASMA INSTABILITY ♦ SHEAR ♦ SOUND WAVES ♦ VELOCITY
Abstract In the strongly coupled limit, the generalized hydrodynamic model shows that a dusty plasma, acquiring significant rigidity, is able to support a “shear” like mode. It is being demonstrated here that in presence of velocity shear gradient, this shear like mode gets coupled with the dust acoustic mode which is generated by the compressibility effect of the dust fluid due to the finite temperatures of the dust, electron, and ion fluids. In the local analysis, the dispersion relation shows that velocity shear gradient not only couples the two modes but is also responsible for the instabilities of that coupled mode which is confirmed by nonlocal analysis with numerical techniques.
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-07-15
Publisher Place United States
Journal Physics of Plasmas
Volume Number 22
Issue Number 7


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