THE INFLUENCE OF A MEAN MAGNETIC-FIELD ON 3-DIMENSIONAL MAGNETOHYDRODYNAMIC TURBULENCE

被引：309

作者：

OUGHTON, S ^{[1
]}

PRIEST, ER ^{[1
]}

MATTHAEUS, WH ^{[1
]}

机构：

[1] UNIV DELAWARE,BARTOL RES INST,NEWARK,DE 19716

来源：

JOURNAL OF FLUID MECHANICS | 1994年 / 280卷

关键词：

D O I：

10.1017/S0022112094002867

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Building on results from two-dimensional magnetohydrodynamic (MHD) turbulence (Shebalin, Matthaeus and Montgomery 1983), the development of anisotropic states from initially isotropic ones is investigated numerically for fully three-dimensional incompressible MHD turbulence. It is found that when an external d.c. magnetic field (B-0) is imposed on viscous and resistive MHD systems, excitations are preferentially transferred to modes with wavevectors perpendicular to B-0. The anisotropy increases with increasing mechanical and magnetic Reynolds numbers, and also with increasing wavenumber. The tendency of B-0 to inhibit development of turbulence is also examined.

引用

页码：95 / 117

页数：23

共 44 条

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