Radial and zonal modes in hyperfine-scale stellarator turbulence

被引：28
|
作者：
Jenko, F [1 ]
Kendl, A [1 ]
机构：
[1] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany
来源：
PHYSICS OF PLASMAS | 2002年 / 9卷 / 10期
关键词：
D O I：
10.1063/1.1507591
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Electromagnetic plasma turbulence at hyperfine (i.e., electron gyroradius) scales is studied in the geometry of an advanced stellarator fusion experiment, Wendelstein 7-AS [H. Renner, Plasma Phys. Controlled Fusion 31, 1579 (1989)], by means of nonlinear gyrokinetic simulations. It is demonstrated that high-amplitude radial streamers may also exist in non-tokamak devices, raising the electron heat flux to experimentally relevant values. Moreover, some statistical characteristics of the fully developed turbulence are computed, highlighting the (co-)existence, nature, and role of self-generated zonal flows and fields. (C) 2002 American Institute of Physics.
引用
收藏
页码：4103 / 4106
页数：4
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