A model realization of self-organized criticality for plasma confinement

被引：215

作者：

Carreras, BA ^{[1
]}

Newman, D ^{[1
]}

Lynch, VE ^{[1
]}

Diamond, PH ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO, LA JOLLA, CA 92093 USA

来源：

PHYSICS OF PLASMAS | 1996年 / 3卷 / 08期

关键词：

D O I：

10.1063/1.871650

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：

A model for plasma transport near marginal stability is presented. The model is based on subcritical resistive pressure-gradient-driven turbulence. Three-dimensional nonlinear calculations based on this model show effective transport for subcritical mean profiles. This model exhibits some of the characteristic properties of self-organized criticality. Perturbative transport techniques are used to elucidate the transport properties. Propagation of positive and negative pulses is studied. The observed results suggest a possible explanation of the apparent nonlocal effects observed with perturbative experiments in tokamaks. (C) 1996 American Institute of Physics.

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页码：2903 / 2911

页数：9

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