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Instability onset and scaling laws of an auto-oscillating turbulent flow in a complex plasma

M. Schwabe, S. Zhdanov, and C. Räth
Phys. Rev. E 95, 041201(R) – Published 10 April 2017
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Abstract

We study a complex plasma under microgravity conditions that is first stabilized with an oscillating electric field. Once the stabilization is stopped, the so-called heartbeat instability develops. We study how the kinetic energy spectrum changes during and after the onset of the instability and compare with the double cascade predicted by Kraichnan and Leith for two-dimensional turbulence. The onset of the instability manifests clearly in the ratio of the reduced rates of cascade of energy and enstrophy and in the power-law exponents of the energy spectra.

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  • Received 1 September 2016

DOI:https://doi.org/10.1103/PhysRevE.95.041201

©2017 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
  1. Physical Systems
Plasma Physics

Authors & Affiliations

M. Schwabe*, S. Zhdanov, and C. Räth

  • Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 82234 Weßling, Germany

  • *mierk.schwabe@dlr.de

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Issue

Vol. 95, Iss. 4 — April 2017

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