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

Physical Review. E
Mierk SchwabeChristoph Räth

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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Citations

Jun 20, 2019·Physical Review. E·Sergey KhrapakAndrey Lipaev
Jul 16, 2017·Physical Review. E·Thomas Y Sheffield, Benno Rumpf

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