期刊
COMPTES RENDUS PHYSIQUE
卷 12, 期 2, 页码 151-159出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crhy.2010.11.006
关键词
MHD; Solar wind; Turbulence
资金
- Institut universitaire de France
Incompressible MHD turbulence is investigated under the presence of a uniform magnetic field B-0. Such a situation is described in the correlation space by a divergence relation which expresses the statistical conservation of the Elsasser energy flux through the inertial range. The ansatz is made that the development of anisotropy, observed when B-0 is strong enough, implies a foliation of space correlation. A direct consequence is the possibility to derive a vectorial law for third-order Elsasser moments which is parametrized by the intensity of anisotropy. We use the so-called critical balance assumption to fix this parameter and find a unique expression. (c) 2010 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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