Flow shear induced Compton scattering of electron drift instability
Plasma flow shear effects on nonlinear saturation of electron drift waves are analyzed in the weak turbulence regime. Flow shear can enhance ion Compton scattering of long wavelength electron drift waves not only by modifying the beat wave-ion resonance condition, but also via the radial dependence of linear susceptibility. A nonlinear dispersion relation is obtained as a solution of the radially nonlocal nonlinear eigenmode equation. At nonlinear saturation, the spectral intensity of the fluctuations scales with flow shear as ({partial derivative}V{var phi}/{partial derivative}r){sup {minus}2} in addition to the linear dependence on the linear growth rate.
- Research Organization:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 5746326
- Report Number(s):
- PPPL-2830; ON: DE92008505
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRON PLASMA WAVES
TURBULENT FLOW
TOKAMAK DEVICES
SHEAR
COMPTON EFFECT
DISPERSION RELATIONS
H-MODE PLASMA CONFINEMENT
NONLINEAR PROBLEMS
PLASMA FLUID EQUATIONS
SCATTERING
BASIC INTERACTIONS
CLOSED PLASMA DEVICES
CONFINEMENT
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
FLUID FLOW
INTERACTIONS
PLASMA CONFINEMENT
PLASMA WAVES
THERMONUCLEAR DEVICES
700340* - Plasma Waves
Oscillations
& Instabilities- (1992-)
700370 - Plasma Fluid & MHD Properties- (1992-)
ELECTRON PLASMA WAVES
TURBULENT FLOW
TOKAMAK DEVICES
SHEAR
COMPTON EFFECT
DISPERSION RELATIONS
H-MODE PLASMA CONFINEMENT
NONLINEAR PROBLEMS
PLASMA FLUID EQUATIONS
SCATTERING
BASIC INTERACTIONS
CLOSED PLASMA DEVICES
CONFINEMENT
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
FLUID FLOW
INTERACTIONS
PLASMA CONFINEMENT
PLASMA WAVES
THERMONUCLEAR DEVICES
700340* - Plasma Waves
Oscillations
& Instabilities- (1992-)
700370 - Plasma Fluid & MHD Properties- (1992-)