Nonlinear Dynamics in the Tokamak Edge

被引：30

作者：

Scott, B. D. ^{[1
]}

Kendl, A. ^{[2
]}

Ribeiro, T. ^{[1
]}

机构：

[1] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany

[2] Univ Innsbruck, Inst Theoret Phys, Euratom OeAW, A-6020 Innsbruck, Austria

来源：

CONTRIBUTIONS TO PLASMA PHYSICS | 2010年 / 50卷 / 3-5期

基金：

奥地利科学基金会;

关键词：

Tokamak edge; turbulence; gyrofluid; gyrokinetic; computation; DRIFT-WAVE TURBULENCE; FLUX TUBE TREATMENTS; GYROKINETIC EQUATIONS; ELECTROMAGNETIC TURBULENCE; ENERGY-CONSERVATION; FLOW GENERATION; ZONAL FLOWS; SIMULATIONS; CONFINEMENT; COMPUTATION;

D O I：

10.1002/ctpp.201010039

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：

The nonlinear character of the tokamak edge results from a unique combination of parameters, leading to a wide dynamical range for most processes. The energetically consistent gyrokinetic equilibrium is emphasised. Edge turbulence computed gyrokinetically exhibits energetic contact to mesoscale MHD and does not follow linear scaling. Gyrofluid studies show self consistent profiles, currents and flows which are kicked out of equilibrium to varying degree. L-mode turbulence and ELM crash phenomenology are both examples of energetic contact between turbulence and MHD, with opposite causality. The overall equilibrium is a statistical saturation rather than a state to which the plasma dissipatively converges. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：228 / 241

页数：14

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