Energy transfer dynamics of dissipative trapped ion convective cell turbulence

Journal Article · Sun Mar 01 04:00:00 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), Journal Name: Physics of Fluids B; (United States) Vol. 4:3; ISSN PFBPE; ISSN 0899-8221
• Country of Publication: United States
• Language: English

Related Subjects

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