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Drift wave instability in a radially bounded dusty magnetoplasma with parallel ion velocity shear

Published online by Cambridge University Press:  17 July 2012

P. K. SHUKLA
Affiliation:
International Centre for Advanced Studies in Physical Sciences & Institute for Theoretical Physics, Faculty of Physics & Astronomy, Ruhr University Bochum, D-44780 Bochum, GermanyDepartment of Mechanical and Aerospace Engineering & Center for Energy Research, University of California San Diego, La Jolla, CA 92093, USA (profshukla@yahoo.de)
M. ROSENBERG
Affiliation:
Department of Electrical and Computer Engineering, University of California San Diego, La Jolla, CA 92093, USA (rosenber@ecepops.ucsd.edu)
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Abstract

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Properties of the coupled dust ion-acoustic drift wave instability in a radially bounded dusty magnetoplasma with an equilibrium sheared parallel ion (SPI) flow are investigated. By using the two-fluid model for the electrons and ions, a wave equation for the low-frequency coupled dust ion-acoustic drift waves in a bounded plasma with stationary charged dust grains is derived. The wave equation admits a linear dispersion relation, which exhibits that the radial boundary affects the growth rate of the coupled ion-acoustic drift wave instability which is excited by the SPI flow. The results should be relevant to dusty magnetoplasma experiments with an SPI flow.

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Papers
Copyright
Copyright © Cambridge University Press 2012