Transitions to spatiotemporal chaos and turbulence of flute instabilities in a low-{beta} magnetized plasma

Journal Article · Wed Mar 15 00:00:00 EST 2006 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PHYSREVE.73.0· OSTI ID:20778876

Brochard, F; Gravier, E; Bonhomme, G ^[1]

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1. LPMIA, UMR 7040 du CNRS, Universite Henri Poincare, Boite Postale 239, F-54506 Vandoeuvre-les-Nancy Cedex (France)

The spatiotemporal transition scenario of flute instabilities from a regular to a turbulent state is experimentally investigated in the low-{beta} plasma column of a thermionic discharge. The same transition scenario, i.e., the Ruelle-Takens route to turbulence, is found for both the Kelvin-Helmholtz and the Rayleigh-Taylor instabilities. It is demonstrated that the transition can be more or less smooth, according to the discharge mode. In both cases, a strong radial dependence is observed, which is linked to the velocity shear layer in the case of the Kelvin-Helmholtz instability.

• OSTI ID: 20778876
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 73, Issue 3; Other Information: DOI: 10.1103/PhysRevE.73.036403; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHAOS THEORY
ELECTRIC DISCHARGES
FLUTE INSTABILITY
HELMHOLTZ INSTABILITY
MAGNETIZATION
PLASMA
RAYLEIGH-TAYLOR INSTABILITY
TURBULENCE