Continuous magnetohydrodynamic spectrum in axially symmetric rotating plasmas

Journal Article · Sun Apr 01 00:00:00 EST 1979 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.862655· OSTI ID:6461635

Hellsten, T A.K.; Spies, G O

The continuous magnetohydrodynamic spectrum is investigated for axially symmetric equilibria in which the plasma rotates toroidally in a purely poloidal magnetic field. The flow continuum is given by a simple algebraic expression, while the Alfven- and cusp continua (which are coupled through the Coriolis force) are given by the eigenvalues of a fourth-order non-self-adjoint problem in ordinary differential equations along magnetic field lines. It is shown that these continua are stable if the entropy does not increase along the field lines away from the rotation axis, but that the cusp continuum may turn unstable otherwise.

• Research Organization: Department of Plasma Physics and Fusion Research, Royal Institute of Technology, Stockholm 70, Sweden
• OSTI ID: 6461635
• Journal Information: Phys. Fluids; (United States), Vol. 22:4
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA CONFINEMENT
ROTATION
AXIAL SYMMETRY
KINETIC EQUATIONS
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
REVERSE-FIELD PINCH
TWO-DIMENSIONAL CALCULATIONS
CONFINEMENT
EQUATIONS
FLUID MECHANICS
HYDRODYNAMICS
MECHANICS
MOTION
PINCH EFFECT
SYMMETRY
700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)