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Coupled flows and oscillations in asymmetric rotating plasmas

Phys. Plasmas 16, 102303 (2009); doi:10.1063/1.3247875

Published 12 October 2009

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A. R. Karimov,1 L. Stenflo,2 and M. Y. Yu3
1Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13/19, Moscow 127412, Russia
2Department of Plasma Physics, Umeå University, SE-90187 Umeå, Sweden and Department of Physics, Linköping University, SE-58183 Linköping, Sweden
3Department of Physics, Institute for Fusion Theory and Simulation, Zhejiang University, 310027 Hangzhou, China and Institut für Theoretische Physik I, Ruhr-Universität Bochum, D-44780 Bochum, Germany

Nonlinear coupling among the radial, axial, and azimuthal flows in an asymmetric cold rotating plasma is considered nonperturbatively. Exact solutions describing an expanding or contracting plasma with oscillations are then obtained. It is shown that despite the flow asymmetry the energy in the radial and axial flow components can be transferred to the azimuthal component but not the vice versa, and that flow oscillations need not be accompanied by density oscillations. ©2009 American Institute of Physics
History: Received 17 August 2009; accepted 23 September 2009; published 12 October 2009
Permalink: http://link.aip.org/link/?PHPAEN/16/102303/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.35.Mw
    Nonlinear phenomena: plasma waves, wave propagation and other interactions
  • 52.27.Jt
    Nonneutral plasmas
  • 52.35.We
    Plasma vorticity
  • 94.30.Tz
    Electromagnetic wave propagation in the magnetosphere
  • YEAR: 2009

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ISSN:
1070-664X (print)   1089-7674 (online)
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