Theory of resistivity-gradient-driven turbulence

Technical Report · Mon Jul 01 00:00:00 EDT 1985

DOI:https://doi.org/10.2172/5510493· OSTI ID:5510493

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 due to 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 Lab. (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5510493
• Report Number(s): ORNL/TM-9363; ON: DE85015068
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA SCRAPE-OFF LAYER
TURBULENCE
TOKAMAK DEVICES
ELECTRIC CONDUCTIVITY
ELECTRONS
NONLINEAR PROBLEMS
THERMAL CONDUCTIVITY
BOUNDARY LAYERS
CLOSED PLASMA DEVICES
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
FERMIONS
LAYERS
LEPTONS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
THERMONUCLEAR DEVICES
700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)