Theory of resistivity-gradient-driven turbulence

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.865396· OSTI ID:5733767

Garcia, L; Diamond, P H; Carreras, B A; Callen, J D

A theory of the nonlinear evolution and saturation of resistivity-driven turbulence, which evolves from linear rippling instabilities, is presented. The nonlinear saturation mechanism is identified both analytically and numerically. Saturation occurs when the turbulent diffusion of the resistivity is large enough so that dissipation caused by parallel electron thermal conduction balances the nonlinearly modified resistivity gradient driving term. The levels of potential, resistivity, and density fluctuations at saturation are calculated. A combination of computational modeling and analytic treatment is used in this investigation.

• Research Organization: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
• OSTI ID: 5733767
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 28:7; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
ANALYTICAL SOLUTION
CLOSED PLASMA DEVICES
ELECTROSTATICS
END EFFECTS
ENERGY LOSSES
ENERGY TRANSFER
FLUCTUATIONS
HEAT TRANSFER
LOSSES
NONLINEAR PROBLEMS
NUMERICAL SOLUTION
PLASMA
POTENTIALS
SATURATION
THERMAL CONDUCTION
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TURBULENCE
VARIATIONS