Equilibrium and stability properties of high-beta torsatrons

Journal Article · Wed Nov 30 23:00:00 EST 1983 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864117· OSTI ID:5384982

Carreras, B A; Hicks, H R; Holmes, J A; Lynch, V E; Garcia, L; Harris, J H; Hender, T C; Masden, B F

Equilibrium and stability properties of high-beta torsatrons are investigated using numerical and semianalytical techniques based on the method of toroidal averaging. The averaged equilibria are compared with those obtained using full three-dimensional codes. Good agreement is obtained, thus validating the averaged method approach. The stability of plasmas for configurations with different aspect ratios and numbers of field periods is studied. The role of the vertical field is also studied in detail. The main conclusion is that for moderate-aspect-ratio torsatrons (A/sub p/< or approx. =8), the self-stabilizing effect of the magnetic axis shift is large enough to open a direct path to the second stability region.

• Research Organization: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5384982
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 26:12; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ANALYTICAL SOLUTION
CLOSED PLASMA DEVICES
CONFINEMENT
EQUILIBRIUM
FLUID MECHANICS
HIGH-BETA PLASMA
HYDRODYNAMICS
MAGNETIC FIELD CONFIGURATIONS
MAGNETOHYDRODYNAMICS
MECHANICS
NUMERICAL SOLUTION
PLASMA
PLASMA CONFINEMENT
STABILITY
STELLARATORS
THERMONUCLEAR DEVICES
TORSATRON STELLARATOR