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

Schwabe, Mierk and Zhdanov, Sergey and Räth, Christoph (2017) Instability onset and scaling laws of an auto-oscillating turbulent flow in a complex plasma. Physical Review E, 95, 041201(R). American Physical Society. doi: 10.1103/PhysRevE.95.041201. ISSN 2470-0045.

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Official URL: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.95.041201


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.

Item URL in elib:https://elib.dlr.de/111898/
Document Type:Article
Title:Instability onset and scaling laws of an auto-oscillating turbulent flow in a complex plasma
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schwabe, MierkMierk.Schwabe (at) dlr.dehttps://orcid.org/0000-0001-6565-5890
Zhdanov, SergeySergey.Zhdanov (at) dlr.deUNSPECIFIED
Räth, ChristophChristoph.Raeth (at) dlr.deUNSPECIFIED
Date:10 April 2017
Journal or Publication Title:Physical Review E
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1103/PhysRevE.95.041201
Page Range:041201(R)
Publisher:American Physical Society
Keywords:complex plasma, turbulence, energy spectra, onset of instability
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Komplexe Plasmen / Zero gravity (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space
Research Group Complex Plasma > Research Group Complex Plasma
Deposited By: Schwabe, Dr. Mierk
Deposited On:17 Apr 2017 22:17
Last Modified:17 Mar 2021 13:40

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