Landau-fluid simulations of Alfven-wave instabilities in a warm collisionless plasma

被引：21

作者：

Bugnon, G ^{[1
]}

Passot, T ^{[1
]}

Sulem, PL ^{[1
]}

机构：

[1] CNRS, Observ Cote Azur, F-06304 Nice 4, France

来源：

NONLINEAR PROCESSES IN GEOPHYSICS | 2004年 / 11卷 / 5-6期

关键词：

D O I：

10.5194/npg-11-609-2004

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A dispersive Landau-fluid model is used to study the decay and modulational instabilities of circularly-polarized Alfven waves in a collisionless plasma, as well as their nonlinear developments. Comparisons are presented with the drift-kinetic approximation for the dispersionless regime and with hybrid simulations in more general conditions. The effect of the nature of the instability on particle heating is discussed, together with the formation of coherent structures or the development of an inverse cascade.

引用

页码：609 / 618

页数：10

共 19 条

[1] NONLINEAR ALFVEN WAVES IN HIGH-SPEED SOLAR-WIND STREAMS [J].