ELECTRON-ION HYBRID MODE DUE TO TRANSVERSE VELOCITY SHEAR

被引：63

作者：

GANGULI, G ^{[1
]}

LEE, YC ^{[1
]}

PALMADESSO, PJ ^{[1
]}

机构：

[1] USN,RES LAB,DIV PLASMA PHYS,WASHINGTON,DC 20375

来源：

PHYSICS OF FLUIDS | 1988年 / 31卷 / 10期

关键词：

Electric fields - Shear flow;

D O I：

10.1063/1.866982

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

It has been established that electrostatic ion-cyclotron-like and Kelvin-Helmholtz modes can be sustained by a transverse velocity shear for L>ρi, where L is the velocity shear scale length and ρi is the ion gyroradius. Here it is shown that if ρei, where ρe is the electron gyroradius, then a short wavelength electron-ion hybrid mode can be excited around the lower hybrid frequency. Like the Kelvin-Helmholtz instability, an explicit dependence on the second derivative of the dc electric field is essential for the growth of this mode. © 1988 American Institute of Physics.

引用

页码：2753 / 2756

页数：4

共 7 条

[1]

ABRAMOWITZ M, 1965, HDB MATH FUNCTIONS, P378

[2] A NEW MECHANISM FOR EXCITATION OF ELECTROSTATIC ION-CYCLOTRON WAVES AND ASSOCIATED PERPENDICULAR ION HEATING [J].