CURRENT AND VORTICITY DYNAMICS IN 3-DIMENSIONAL MAGNETOHYDRODYNAMIC TURBULENCE

被引：152

作者：

POLITANO, H

POUQUET, A

SULEM, PL

机构：

[1] CNRS URA 1362, Observatoire de la Côte d'Azur, 06304 Nice Cedex 4

来源：

PHYSICS OF PLASMAS | 1995年 / 2卷 / 08期

关键词：

D O I：

10.1063/1.871473

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：

Spectral numerical simulations of homogeneous incompressible magnetohydrodynamic turbulence at Reynolds mumbers up to about 500, are performed using a uniform grid of 180(3) collocation points. Strong vorticity and current sheets obtain both in the presence and in the absence of magnetic nulls. Contrary to vortex sheets in hydrodynamics, these structures do not destabilize into filaments, but are locally disrupted. They are the main loci of kinetic and magnetic dissipations. (C) 1995 American institute of Physics.

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页码：2931 / 2939

页数：9

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