Flow shear induced Compton scattering of electron drift instability

Technical Report · Sat Feb 01 04:00:00 EST 1992

DOI:https://doi.org/10.2172/10125128· OSTI ID:10125128

Hahm, T S

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 Univ., NJ (United States). Plasma Physics Lab.
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 10125128
• Report Number(s): PPPL--2830; ON: DE92008505
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340
700370
COMPTON EFFECT
DISPERSION RELATIONS
ELECTRON PLASMA WAVES
H-MODE PLASMA CONFINEMENT
NONLINEAR PROBLEMS
PLASMA FLUID AND MHD PROPERTIES
PLASMA FLUID EQUATIONS
PLASMA WAVES, OSCILLATIONS, AND INSTABILITIES
SCATTERING
SHEAR
TOKAMAK DEVICES
TURBULENT FLOW