The Influence of a Mean Magnetic Field on Three-Dimensional Magnetohydrodynamic Turbulence

Sean Oughton; Eric R. Priest; William H. Matthaeus

doi:10.1017/S0022112094002867

The Influence of a Mean Magnetic Field on Three-Dimensional Magnetohydrodynamic Turbulence

Sean Oughton, Eric R. Priest, William H. Matthaeus

Applied Mathematics

Research output: Contribution to journal › Article › peer-review

Abstract

Building on results from two-dimensional magnetohydrodynamic (MHD) turbulence (Shebalin, Matthaeus & 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 (B0) is imposed on viscous and resistive MHD systems, excitations are preferentially transferred to modes with wavevectors perpendicular to B₀. The anisotropy increases with increasing mechanical and magnetic Reynolds numbers, and also with increasing wavenumber. The tendency of B₀to inhibit development of turbulence is also examined.

Original language	English
Pages (from-to)	95-117
Number of pages	23
Journal	Journal of Fluid Mechanics
Volume	280
DOIs	https://doi.org/10.1017/S0022112094002867
Publication status	Published - Dec 1994

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title = "The Influence of a Mean Magnetic Field on Three-Dimensional Magnetohydrodynamic Turbulence",

abstract = "Building on results from two-dimensional magnetohydrodynamic (MHD) turbulence (Shebalin, Matthaeus \& 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 (B0) is imposed on viscous and resistive MHD systems, excitations are preferentially transferred to modes with wavevectors perpendicular to B0. The anisotropy increases with increasing mechanical and magnetic Reynolds numbers, and also with increasing wavenumber. The tendency of B0to inhibit development of turbulence is also examined.",

author = "Sean Oughton and Priest, \{Eric R.\} and Matthaeus, \{William H.\}",

year = "1994",

month = dec,

doi = "10.1017/S0022112094002867",

language = "English",

volume = "280",

pages = "95--117",

journal = "Journal of Fluid Mechanics",

issn = "0022-1120",

publisher = "Cambridge University Press",

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T1 - The Influence of a Mean Magnetic Field on Three-Dimensional Magnetohydrodynamic Turbulence

AU - Oughton, Sean

AU - Priest, Eric R.

AU - Matthaeus, William H.

PY - 1994/12

Y1 - 1994/12

N2 - Building on results from two-dimensional magnetohydrodynamic (MHD) turbulence (Shebalin, Matthaeus & 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 (B0) is imposed on viscous and resistive MHD systems, excitations are preferentially transferred to modes with wavevectors perpendicular to B0. The anisotropy increases with increasing mechanical and magnetic Reynolds numbers, and also with increasing wavenumber. The tendency of B0to inhibit development of turbulence is also examined.

AB - Building on results from two-dimensional magnetohydrodynamic (MHD) turbulence (Shebalin, Matthaeus & 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 (B0) is imposed on viscous and resistive MHD systems, excitations are preferentially transferred to modes with wavevectors perpendicular to B0. The anisotropy increases with increasing mechanical and magnetic Reynolds numbers, and also with increasing wavenumber. The tendency of B0to inhibit development of turbulence is also examined.

UR - https://www.scopus.com/pages/publications/0028739184

U2 - 10.1017/S0022112094002867

DO - 10.1017/S0022112094002867

M3 - Article

AN - SCOPUS:0028739184

SN - 0022-1120

VL - 280

SP - 95

EP - 117

JO - Journal of Fluid Mechanics

JF - Journal of Fluid Mechanics

ER -

The Influence of a Mean Magnetic Field on Three-Dimensional Magnetohydrodynamic Turbulence

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