Non-Markovian Effects in Turbulent Diffusion in Magnetized Plasmas

Journal Article · Thu Oct 08 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3253966· OSTI ID:21322946

Zagorodny, Anatoly ^[1]; Weiland, Jan ^[2]

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1. Bogolyubov Institute for Theoretical Physics, Metrolohichna Str. 14-b, 03680 Kiev (Ukraine)
2. Chalmers Technical University and Euratom-VR Association, S-41296 Goeteborg (Sweden)

The derivation of the kinetic equations for inhomogeneous plasma in an external magnetic field is presented. The Fokker-Planck-type equations with the non-Markovian kinetic coefficients are proposed. In the time-local limit (small correlation times with respect to the distribution function relaxation time) the relations obtained recover the results known from the appropriate quasilinear theory and the Dupree-Weinstock theory of plasma turbulence. The equations proposed are used to describe zonal flow generation and to estimate the diffusion coefficient for saturated turbulence.

• OSTI ID: 21322946
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1177; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHARGED-PARTICLE TRANSPORT
CORRELATIONS
DIFFUSION
DISTRIBUTION FUNCTIONS
FOKKER-PLANCK EQUATION
INHOMOGENEOUS PLASMA
KINETIC EQUATIONS
MAGNETIC FIELDS
MARKOV PROCESS
QUASILINEAR PROBLEMS
RELAXATION TIME
TURBULENCE