Ballooning stability of axisymmetric plasmas with sheared equilibrium flows

Journal Article · Wed Nov 01 00:00:00 EST 1989 · Physics of Fluids B: Plasma Physics; (USA)

DOI:https://doi.org/10.1063/1.859035· OSTI ID:5174867

Bhattacharjee, A; Iacono, R; Milovich, J L; Paranicas, C ^[1]

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1. Department of Applied Physics, Columbia University, New York, New York 10027 (US)

A WKB theory is formulated for large-{ital n} ballooning modes in axisymmetric, toroidal plasmas with sheared equilibrium flows. The validity of the standard ballooning representation is severely restricted in the presence of sheared toroidal flow, despite the fact that to leading order in (1/{ital n}), where {ital n} is the azimuthal number, the eigenmode equation contains only derivatives along a field line. Necessary and sufficient conditions for stability are obtained in a high-beta ordering for rigid toroidal rotation as well as field-aligned flows.

• OSTI ID: 5174867
• Journal Information: Physics of Fluids B: Plasma Physics; (USA), Vol. 1:11; ISSN 0899-8221
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BALLOONING INSTABILITY
WKB APPROXIMATION
HIGH-BETA PLASMA
AZIMUTH
EIGENVALUES
EQUILIBRIUM
MAGNETIC FIELDS
PLASMA DRIFT
REVIEWS
ROTATING PLASMA
SHEAR
STABILITY
SYMMETRY
TOROIDAL CONFIGURATION
ANNULAR SPACE
CLOSED CONFIGURATIONS
CONFIGURATION
DOCUMENT TYPES
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
SPACE
700107* - Fusion Energy- Plasma Research- Instabilities