Core instability of elliptic drift vortices

Journal Article · Fri May 01 04:00:00 EDT 1992 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860091· OSTI ID:7182419

Rath, S ^[1]; Sridhar, S ^[2]

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1. Princeton Plasma Physics Laboratory, Princeton University, P.O. Box 451, Princeton, New Jersey 08543 (United States)
2. Theoretical Astrophysics, 130-33, California Institute of Technology, Pasadena, California 91125 (United States)

It is shown that two-dimensional drift vortices with elliptic cores are unstable to certain short-wavelength three-dimensional perturbations. Circular vortices are stable to those modes. At short wavelengths, the growth rate is independent of the wavelength and, for small ellipticity, it is proportional to the ellipticity.

• DOE Contract Number: AC02-76CH03073
• OSTI ID: 7182419
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 4:5; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
CONFIGURATION
ELECTRON DENSITY
ELLIPTICAL CONFIGURATION
INHOMOGENEOUS PLASMA
INSTABILITY
INSTABILITY GROWTH RATES
LOW-BETA PLASMA
PLASMA
QUASI PARTICLES
SOLITONS
VORTICES