EXPERIMENTAL DYNAMICS OF AN ANNULUS OF VORTICITY IN A PURE ELECTRON-PLASMA

被引：55

作者：

PEURRUNG, AJ

FAJANS, J

机构：

[1] Department of Physics, University of California, Berkeley

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1993年 / 5卷 / 02期

关键词：

D O I：

10.1063/1.858872

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The dynamics of hollow, cylindrically shaped pure electron plasmas are studied. Since these plasmas behave like two-dimensional (2-D) fluids with low viscosity, their evolution parallels the evolution of 2-D fluid vorticity annuli inside frictionless circular containers. Growth of the Kelvin-Helmholtz instability in circular geometry is observed. The formation and subsequent interaction of vortices are studied as a function of ring thickness. Small initial perturbations can dramatically increase the symmetry and repeatability of the dynamics.

引用

页码：493 / 499

页数：7

共 31 条

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