Effect of rigid rotation on the stability to external kink modes

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860749· OSTI ID:6485167

Bhattacharyya, S N; Sen, A ^[1]

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1. Institute for Plasma Research, Bhat, Gandhinagar 382424 (India)

The effect of rigid toroidal rotation on the stability of a tokamak to external kink modes is examined. The effect of rigid rotation is modeled by a centrifugal force field. The problem is studied in the cylindrical limit for which this reduces to a uniform force field acting in a direction transverse to the plasma column. The effect of a transverse force field on the limit on the safety factor [ital q] for stability to external kink modes is studied. For values of [ital q] above this, limits on the plasma beta, denoted [beta], are obtained. A study of the equilibrium of a toroidal plasma undergoing rigid toroidal rotation yields another limit on [beta] as a function of [ital q]. Combining the results of cylindrical stability with that of toroidal equilibrium provides approximate estimates of the maximum [beta] that could be obtained. The effect of rigid rotation on this maximum [beta] is also studied.

• OSTI ID: 6485167
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:7; ISSN PFBPEI; ISSN 0899-8221
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
ANNULAR SPACE
CLOSED CONFIGURATIONS
CLOSED PLASMA DEVICES
CONFIGURATION
EQUILIBRIUM
INSTABILITY
KINK INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MOTION
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
ROTATING PLASMA
ROTATION
SPACE
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TOROIDAL CONFIGURATION