FLUCTUATIONS AND TRANSPORT DUE TO ION-TEMPERATURE-GRADIENT DRIVEN INSTABILITIES

被引：33

作者：

SYDORA, RD ^{[1
]}

HAHM, TS ^{[1
]}

LEE, WW ^{[1
]}

DAWSON, JM ^{[1
]}

机构：

[1] PRINCETON UNIV,PLASMA PHYS LAB,PRINCETON,NJ 08543

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.64.2015

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The nonlinear evolution and spectral properties of ion temperature gradient-driven modes in a three-dimensional sheared magnetic field with multiple rational surfaces have been investigated using gyrokinetic plasma simulation techniques. A detailed study of the electrostatic potential fluctuation spectra shows that it is dominated by the modes with moderate poloidal wavelength (0.1kys0.5). The measured thermal flux in the steady state, which is lower than the quasilinear value at saturation, is found to decrease weakly with an increase in the magnetic shear strength. © 1990 The American Physical Society.

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页码：2015 / 2018

页数：4

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