Resonance parallel viscosity in the banana regime in poloidally rotating tokamak plasmas

Journal Article · Sun May 01 04:00:00 EDT 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870713· OSTI ID:5007199

Shaing, K C; Hsu, C T; Dominguez, N ^[1]

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1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8071 (United States)

Parallel viscosity in the banana regime in a poloidally ([bold E][times][bold B]) rotating tokamak plasma is calculated to include the effects of orbit squeezing and to allow the poloidal [bold E][times][bold B] Mach number [ital M][sub [ital p]] to have a value of order unity. Here, [bold E] is the electric field and [bold B] is the magnetic field. The effects of orbit squeezing not only modify the size of the particle orbit, but also change the fraction of poloidally trapped particles. Resonance between the particle parallel (to [bold B]) speed [ital u] and the poloidal component of the [bold E][times][bold B] velocity can only occur for those particles with energy ([ital v]/[ital v][sub [ital t]])[sup 2][gt][ital M][sup 2][sub [ital p]] (with [ital v] the particle speed and [ital v][sub [ital t]] the thermal speed). Thus, the resonance parallel plasma viscosity in the banana regime decreases exponentially with [ital M][sup 2][sub [ital p]] when [ital M][sup 2][sub [ital p]][ge]1, and has a local maximum of [ital M][sup 2][sub [ital p]][similar to]1.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5007199
• Journal Information: Physics of Plasmas; (United States), Journal Name: Physics of Plasmas; (United States) Vol. 1:5; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700330* -- Plasma Kinetics
Transport
& Impurities-- (1992-)
700350 -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
BANANA REGIME
CLOSED PLASMA DEVICES
COLLISIONAL PLASMA
EQUATIONS
KINETIC EQUATIONS
MACH NUMBER
PLASMA
PLASMA DRIFT
RESONANCE
ROTATING PLASMA
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TRANSPORT THEORY
TRAPPING
VELOCITY
VISCOSITY