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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  and
M. ROSENBERG
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, Germany Department 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

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.

Type
Papers
Information
Journal of Plasma Physics , Volume 79 , Issue 1 , February 2013 , pp. 33 - 35
Copyright
Copyright © Cambridge University Press 2012

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