Sheared-flow generalization of the Harris sheet

被引：21

作者：

Mahajan, SM ^{[1
]}

Hazeltine, RD ^{[1
]}

机构：

[1] Univ Texas, Inst Fus Studies, Austin, TX 78712 USA

来源：

PHYSICS OF PLASMAS | 2000年 / 7卷 / 04期

关键词：

D O I：

10.1063/1.873939

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 novel, exact class of solutions to the Vlasov-Maxwell system, with self-generated magnetic fields and nonuniform plasma flows, are constructed. It is shown that a gyrotropic distribution function (independent of gyrophase) does not allow equilibrium shear flow; introduction of agyrotropy is essential for the maintenance of spatially nonuniform velocity fields. The new self-consistent sheared-flow solutions include the shearless Harris sheet [E. G. Harris, Nuovo Cimento 23, 117 (1962)] solution as a special case. These equilibria are likely to be relevant to a variety of astrophysical flows (most natural flows are sheared) and to a better understanding of the laboratory phenomena observed, for example, in the device MRX [Magnetic Reconnection Experiment, M. Yamada, H. Ji, S. Hsu, T. Carter, R. Kulsrud, N. Bretz, F. Jodes, Y. Ono, and F. Perkins, Phys. Plasmas 4, 1936 (1997)] designed to study magnetic reconnection. (C) 2000 American Institute of Physics. [S1070-664X(00)03104-9].

引用

页码：1287 / 1293

页数：7

共 8 条

[1] THE BOLTZMANN EQUATION AND THE ONE-FLUID HYDROMAGNETIC EQUATIONS IN THE ABSENCE OF PARTICLE COLLISIONS [J].