SAWTEETH IN TOKAMAKS - AN EXAMPLE OF PERIODIC DYNAMICS IN A TURBULENT SYSTEM

被引：8

作者：

HAAS, FA

THYAGARAJA, A

机构：

来源：

EUROPHYSICS LETTERS | 1992年 / 19卷 / 04期

关键词：

PLASMA IN TORUS (STELLARATOR; TOKAMAK; ETC); PLASMA TURBULENCE; PLASMA INSTABILITIES;

D O I：

10.1209/0295-5075/19/4/007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A dynamical model of the temporal features of sawtooth oscillations in tokamaks is derived from a full set of conservation equations assuming certain turbulent constitutive relations for anomalous particle and energy transport. Taking partial reconnection as an experimental fact, nonlinear equations for beta(poloidal) within the q < 1 surface and the magnetic turbulence energy are obtained. Expressions for the sawtooth period, the crash time-scale, and the maximum amplitude of magnetic fluctuations at the crash are deduced and compared with typical conditions in JET and TEXT tokamaks.

引用

页码：285 / 291

页数：7

共 9 条

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