Blobs and front propagation in the scrape-off layer of magnetic confinement devices

Bian, N., Benkadda, S., Paulsen, J.-V. and Garcia, O. E. (2003) Blobs and front propagation in the scrape-off layer of magnetic confinement devices. Physics of Plasmas, 10(3), p. 671. (doi:10.1063/1.1541021)

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Abstract

In this paper we show the self-consistent evolution of an isolated density perturbation in models of tokamak scrape-off layer turbulence. Our purpose is to explain the possible mechanisms responsible for radial propagation of density perturbations observed in the scrape-off layer. Results of both two-dimensional numerical simulations and one-dimensional quasilinear modeling of the propagative events are presented, and shown to be consistent with many experimental observations. The role of sheath dissipation for front propagation and turbulent mixing is also addressed.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Bian, Dr Nicolas Horace
Authors: Bian, N., Benkadda, S., Paulsen, J.-V., and Garcia, O. E.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics of Plasmas
Publisher:American Institute of Physics
ISSN:1070-664X
ISSN (Online):1089-7674

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