Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Regular Articles
Statistical Analyses of Turbulent Particle and Momentum Fluxes in a Cylindrical Magnetized Plasma
Makoto SASAKINaohiro KASUYAMasatoshi YAGIKimitaka ITOHYoshihiko NAGASHIMAShigeru INAGAKISanae-I. ITOH
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2013 Volume 8 Pages 2401113

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Abstract

A nonlinear simulation of resistive drift wave turbulence in a cylindrical plasma is carried out. Long time evolution of turbulence with formation of a zonal flow is obtained for more than 1000 times of the typical drift wave period, which is sufficient for statistical analyses. Dynamical particle and momentum balance for the formation of the mean reveals that the radial turbulent fluxes are dominant contributors for the evolution of fluctuations. The particle flux is found to precede the momentum flux for 0.4 times of the typical drift wave period with large temporal variance. The analyses of the time series data of 3-D fields give the understanding of the dynamical structural formation mechanism.

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© 2013 by The Japan Society of Plasma Science and Nuclear Fusion Research
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