Nonlinear saturation of drift waves in sheared magnetic field
Journal Article
·
· Phys. Fluids; (United States)
A nonlinear saturation mechanism of electrostatic drift waves in a sheared magnetic field is presented. The basic physical mechanism is the coupling of the unstable, lowest radial mode to higher modes which are damped because of their short radial wavelengths. Stationary spectra are obtained analytically and applied to the current-driven drift wave instability.
- Research Organization:
- Institute for Fusion Theory, Hiroshima University, Hiroshima, Japan
- OSTI ID:
- 5000969
- Journal Information:
- Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 25:9; ISSN PFLDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107 -- Fusion Energy-- Plasma Research-- Instabilities
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ANALYTICAL SOLUTION
COUPLING
DAMPING
DRIFT INSTABILITY
INSTABILITY
MAGNETIC FIELDS
NONLINEAR PROBLEMS
OSCILLATION MODES
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
SATURATION
SHEAR
700107 -- Fusion Energy-- Plasma Research-- Instabilities
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ANALYTICAL SOLUTION
COUPLING
DAMPING
DRIFT INSTABILITY
INSTABILITY
MAGNETIC FIELDS
NONLINEAR PROBLEMS
OSCILLATION MODES
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
SATURATION
SHEAR