TITLE

A two-component phenomenology for homogeneous magnetohydrodynamic turbulence

AUTHOR(S)
Oughton, S.; Dmitruk, P.; Matthaeus, W. H.
PUB. DATE
April 2006
SOURCE
Physics of Plasmas;Apr2006, Vol. 13 Issue 4, p042306
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A one-point closure model for energy decay in three-dimensional magnetohydrodynamic (MHD) turbulence is developed. The model allows for influence of a large-scale magnetic field that may be of strength sufficient to induce Alfvén wave propagation effects, and takes into account components of turbulence in which either the wave-like character is negligible or is dominant. This two-component model evolves energy and characteristic length scales, and may be useful as a simple description of homogeneous MHD turbulent decay. In concert with spatial transport models, it can form the basis for approximate treatment of low-frequency plasma turbulence in a variety of solar, space, and astrophysical contexts.
ACCESSION #
20695188

 

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