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Coupled azimuthal and radial flows and oscillations in a rotating plasma
Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13/19, Moscow 127412, Russia.
Umeå University, Faculty of Science and Technology, Department of Physics. (Department of Physics, Linköping University, SE-58183 Linköping, Sweden)
Department of Physics, Institute for Fusion Theory and Simulation, Zhejiang University, 310027 Hangzhou, China. (Institut für Theoretische Physik I, Ruhr-Universität Bochum, D-44780 Bochum, Germany)
2009 (English)In: Physics of Plasmas, ISSN 1070-664X, Vol. 16, 062313-062319 p.Article in journal (Refereed) Published
Abstract [en]

Nonlinear coupling between the radial, axial, and azimuthal flows in a cold rotating plasma is considered nonperturbatively by first constructing a basis solution for a rotating flow. Simple but exact solutions that describe an expanding plasma with oscillatory flow fields are then obtained. These solutions show that the energy in the radial and axial flow components can be transferred to the azimuthal component but not the vice versa. Nonlinear electron velocity oscillations in the absence of electron density oscillations at the same frequency are shown to exist.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2009. Vol. 16, 062313-062319 p.
National Category
Physical Sciences
URN: urn:nbn:se:umu:diva-30469DOI: 10.1063/1.3158596OAI: diva2:283551
Available from: 2009-12-29 Created: 2009-12-29 Last updated: 2011-12-05Bibliographically approved

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Stenflo, Lennart
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