On the Nature of Incompressible Magnetohydrodynamic Turbulence

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dc.creatorGogoberidze, G.
dc.date2006-11-29
dc.date2007-01-10
dc.date.accessioned2026-07-07T10:21:04Z
dc.date.available2026-07-07T10:21:04Z
dc.descriptionA novel model of incompressible magnetohydrodynamic turbulence in the presence of a strong external magnetic field is proposed for explanation of recent numerical results. According to the proposed model, in the presence of the strong external magnetic field, incompressible magnetohydrodynamic turbulence becomes nonlocal in the sense that low frequency modes cause decorrelation of interacting high frequency modes from the inertial interval. It is shown that the obtained nonlocal spectrum of the inertial range of incompressible magnetohydrodynamic turbulence represents an anisotropic analogue of Kraichnan's nonlocal spectrum of hydrodynamic turbulence. Based on the analysis performed in the framework of the weak coupling approximation, which represents one of the equivalent formulations of the direct interaction approximation, it is shown that incompressible magnetohydrodynamic turbulence could be both local and nonlocal and therefore anisotropic analogues of both the Kolmogorov and Kraichnan spectra are realizable in incompressible magnetohydrodynamic turbulence.
dc.descriptionPhysics of Plasmas (Accepted). A small chapter added about 2D MHD turbulence
dc.identifierhttps://arxiv.org/abs/astro-ph/0611894
dc.identifierhttp://arxiv.org/abs/astro-ph/0611894
dc.identifierPhys.Plasmas14:022304,2007
dc.identifierdoi:10.1063/1.2437753
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175053
dc.subjectAstrophysics
dc.subjectChaotic Dynamics
dc.subjectFluid Dynamics
dc.titleOn the Nature of Incompressible Magnetohydrodynamic Turbulence
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