Description of a stellarator plasma with averaged MHD equations

Journal Article · Mon Sep 01 04:00:00 EDT 1980 · Sov. J. Plasma Phys. (Engl. Transl.); (United States)

OSTI ID:6245876

Kovrizhnykh, L M; Shchepetov, S V

Dynamical equations for the plasma in a toroidal confinement system with a magnetic field which varies rapidly over space are derived in the MHD approximation. These equations are averaged over the longitudinal coordinate. They simplify the problem substantially, reducing it to a study of an axisymmetric equilibrium. This procedure is used to solve the problem of the equilibrium and stability of a plasma in a toroidal stellarator which lies in a plane. A condition is derived for the occurrence of the flute instability. It is shown that the stability of the plamsa can be improved by raising the pressure; i.e., a self-deepening magnetic well may form.

• Research Organization: P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 6245876
• Journal Information: Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 6:5; ISSN SJPPD
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
ANNULAR SPACE
CLOSED PLASMA DEVICES
CONFIGURATION
FLUID MECHANICS
FLUTE INSTABILITY
HYDRODYNAMICS
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC SURFACES
MAGNETOHYDRODYNAMICS
MECHANICS
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
SHEAR
SPACE
STELLARATORS
SUYDAM CRITERION
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TOROIDAL CONFIGURATION