Energy transfer dynamics of dissipative trapped ion convective cell turbulence

Journal Article · Sun Mar 01 00:00:00 EST 1992 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860258· OSTI ID:7046786

Newman, D E; Terry, P W ^[1]; Diamond, P H ^[2]

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1. Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)
2. Department of Physics, University of California at San Diego, La Jolla, California 92093 General Atomics, La Jolla, California 92138 (United States)

The properties of the spectral energy transfer for a two-dimensional fluid representation of dissipative trapped ion convective cell turbulence are studied numerically using a spectral method. It is established that the spectral energy flow is from long to short wavelength, as governed (under the dynamics of the {ital E}{times}{ital B} nonlinearity) by a single quadratic invariant, the energy. This flow is correctly predicted by equilibrium statistical mechanics, as is the equilibrium spectrum. Examining the locality of energy flow, strong nonlocal energy transfer is observed, a process that efficiently transfers the energy of a mode across the spectrum in a correlation time. This transfer process deviates dramatically from the canonical self-similar cascade dynamics of Kolmogorov that typifies the cascade of two- and three-dimensional Navier--Stokes and Hasegawa--Mima drift wave turbulence. Anisotropy of the spectral transfer dynamics is also observed.

• DOE Contract Number: FG02-89ER53291
• OSTI ID: 7046786
• Journal Information: Physics of Fluids B; (United States), Vol. 4:3; ISSN 0899-8221
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
TOKAMAK DEVICES
PLASMA CONFINEMENT
TRAPPED-PARTICLE INSTABILITY
ENERGY TRANSFER
CONVECTIVE INSTABILITIES
NAVIER-STOKES EQUATIONS
NUMERICAL SOLUTION
TRAPPED ELECTRONS
TURBULENCE
TWO-DIMENSIONAL CALCULATIONS
CLOSED PLASMA DEVICES
CONFINEMENT
DIFFERENTIAL EQUATIONS
ELECTRONS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
INSTABILITY
LEPTONS
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
THERMONUCLEAR DEVICES
700340* - Plasma Waves
Oscillations
& Instabilities- (1992-)