Flute waves at the ion Larmor radius scales

Journal Article · Tue Dec 14 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3533180· OSTI ID:21506945

Onishchenko, O G ^[1]

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1. Institute of Physics of the Earth, 10 B. Gruzinskaya, 123995 Moscow (Russian Federation)

The theory of the magnetic Rayleigh-Taylor instability (RTI) is discussed. Modified linear kinetic theory allows us to investigate RTI and flute waves with arbitrary perpendicular spatial scales compared to the ion Larmor radius. It is shown that in the linear limit a Fourier transform of these equations yields the dispersion relation which in the so-called Pade approximation corresponds to results of the kinetic theory. This analysis represents an extension of the previous study of the magnetic RTI obtained in the large wave scale approximation. It is shown that incorporation of the effects associated with wave scales of the order of the ion Larmor radius leads to a broader wave number range of the magnetic RTI.

• OSTI ID: 21506945
• Journal Information: AIP Conference Proceedings, Vol. 1306, Issue 1; Conference: Workshop on new frontiers in advanced plasma physics, Trieste (Italy), 5-16 Jul 2010; Other Information: DOI: 10.1063/1.3533180; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISPERSION RELATIONS
FLUTE INSTABILITY
FOURIER TRANSFORMATION
IONS
LARMOR RADIUS
MAGNETOHYDRODYNAMICS
PADE APPROXIMATION
RAYLEIGH-TAYLOR INSTABILITY
APPROXIMATIONS
CALCULATION METHODS
CHARGED PARTICLES
FLUID MECHANICS
HYDRODYNAMICS
INSTABILITY
INTEGRAL TRANSFORMATIONS
MECHANICS
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
TRANSFORMATIONS