Energy principle with global invariants: Applications

Journal Article · Tue Feb 01 00:00:00 EST 1983 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864137· OSTI ID:6421825

Bhattacharjee, A; Dewar, R L; Glasser, A H; Chance, M S; Wiley, J C

Minimum-energy equilibrium states of a pressureless cylindrical plasma are constructed subject to a recently proposed set of constraints appropriate to turbulent relaxation dominated by a tearing mode of single helicity. Stability to ideal and resistive modes is examined. It is found that the relaxed states of minimum energy are always stable to the dominant mode, as well as a class of other low m and n modes, but that there are typically high n residual instabilities in the case of the pitch branch, and a residual m = 3, n = 2 resistive instability is found for an otherwise stable narrow window in the tokamak branch. It is argued that the residual instabilities may be compatible with experimental observations.

• Research Organization: Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712
• DOE Contract Number: FG05-80ET53088
• OSTI ID: 6421825
• Journal Information: Phys. Fluids; (United States), Vol. 26:2
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA
EQUILIBRIUM
CYLINDRICAL CONFIGURATION
ENERGY
HELICITY
INVARIANCE PRINCIPLES
OSCILLATION MODES
PINCH DEVICES
RELAXATION
STABILITY
TEARING INSTABILITY
TOKAMAK DEVICES
TURBULENCE
USES
CLOSED PLASMA DEVICES
CONFIGURATION
INSTABILITY
PARTICLE PROPERTIES
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
THERMONUCLEAR DEVICES
700107* - Fusion Energy- Plasma Research- Instabilities