Stability analysis of resistive wall kink modes in rotating plasmas

Journal Article · Mon Apr 10 04:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.74.2949· OSTI ID:44864

Betti, R; Freidberg, J P ^[1]

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1. Laboratory for Laser Energetics and Department of Mechanical Engineering, University of Rochester, Rochester, New York 14623 (United States)

The stability analysis of external magnetohydrodynamic modes is carried out for a cylindrical plasma in the presence of a resistive wall, plasma flow, and coupling to the sound wave continuous spectrum. It is confirmed that the resonance of the mode with the sound continuum produces an effective dissipation. The combined effects of dissipation and plasma flow open up a window of stability to the external kinks. This theory can explain the numerical results of A. Bondeson and D. J. Ward [Phys. Rev. Lett. {bold 72}, 2709 (1994)].

• DOE Contract Number: FG02-93ER54215
• OSTI ID: 44864
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 74; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CYLINDRICAL CONFIGURATION
DISPERSION RELATIONS
KINK INSTABILITY
MAGNETOHYDRODYNAMICS
PLASMA
RESONANCE
SOUND WAVES
TOKAMAK DEVICES