Volume 43, Number 5, September I 1998
|Page(s)||533 - 538|
|Section||Physics of gases, plasmas, and electrical discharges|
|Published online||01 September 2002|
Turbulent transport by higher-order particle drifts
Association EURATOM - Risø National Laboratory, Optics and Fluid Dynamics Department Risø, P.O. Box 49 DK-4000 Roskilde, Denmark
Accepted: 29 June 1998
It is shown that the ion polarization drift gives rise to a finite density flux in drift wave turbulence. A visible effect of this transport is reflected in the motion of coherent vortical structures, which results in strong, burst-like transport. If there is no phase shift between density and potential fluctuations it is the dominant contribution to the flux, even when the drift is the dominating velocity.
PACS: 52.35.Kt – Drift waves / 52.35.Mw – Nonlinear waves and nonlinear wave propagation (including parametric effects, mode coupling, ponderomotive effects, etc.) / 52.65.-y – Plasma simulation
© EDP Sciences, 1998
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