Direct Interaction Approximation of Magnetohydrodynamic Turbulence

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dc.creatorVerma, Mahendra K.
dc.creatorBhattacharjee, Jayant K.
dc.date1995-09-05
dc.date.accessioned2026-07-07T09:07:49Z
dc.date.available2026-07-07T09:07:49Z
dc.descriptionIn this paper we apply Kraichnan's direct interaction approximation, which is a one loop perturbation expansion, to magnetohydrodynamic turbulence. By substituting the energy spectra both from kolmogorov-like MHD turbulence phenomenology and a generalization of Dobrowolny et al.'s model we obtain Kolmogorov's and Kraichnan's constant for MHD turbulence. We find that the constants depend of the Alfvén ratio and normalized cross helicity; the dependence has been studied here. We also demonstrate the inverse cascade of magnetic energy for Kolmogorov-like models. Our results are in general agreement with the earlier simulation results except for large normalized cross helicity.
dc.descriptionRevtex, 32 pages, submitted to Phys. Rev. E, 3 figures: available upon request at mkv@iitk.ernet.in
dc.identifierhttps://arxiv.org/abs/chao-dyn/9509003
dc.identifierhttp://arxiv.org/abs/chao-dyn/9509003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/150502
dc.subjectChaotic Dynamics
dc.titleDirect Interaction Approximation of Magnetohydrodynamic Turbulence
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