Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3905
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dc.contributor.authorSridhar, S.-
dc.date.accessioned2010-07-20T09:39:36Z-
dc.date.available2010-07-20T09:39:36Z-
dc.date.issued2009-12-28-
dc.identifier.citationAstronomische Nachrichten, 2010, Vol.331, p93en
dc.identifier.issn1521-3994 (Online)-
dc.identifier.issn0004-6337-
dc.identifier.urihttp://hdl.handle.net/2289/3905-
dc.descriptionRestricted Access.en
dc.description.abstractI present a review of incompressible magnetohydrodynamic (MHD) turbulence in a strongly magnetised plasma. The approach is phenomenological even where a more rigorous theory is available, so that a reader armed with paper, pencil and some determination may be able to work through most of the physics. The focus is on the inertial-range spectra for very large (fluid and magnetic) Reynolds numbers. These theories of the inertial-range are built on two important facts: (i) Kraichnan's insight that the turbulent cascades are a result of nonlinear interactions between oppositely directed wavepackets of Elsasser fields; (ii) these oppositely directed wavepackets do not exchange energy, but contribute only to changing each other's spatial structures. I begin with a description and critique of the Iroshnikov-Kraichnan theory, and explore the fundamental departures necessitated by the anisotropic nature of the turbulence. Derivations of the inertial-range spectra of four regimes of MHD turbulence - the balanced weak, balanced strong, imbalanced weak and the imbalanced strong cascades - are then presented. The need for studying the spectra of imbalanced turbulence when the waves on the outer scale have a short correlation time is briefly discusseden
dc.language.isoenen
dc.publisherWILEY-VCH Verlag GmbH & Coen
dc.relation.urihttp://adsabs.harvard.edu/abs//2009arXiv0911.2581Sen
dc.relation.urihttp://arxiv.org/abs/0911.2581en
dc.relation.urihttp://dx.doi.org/10.1002/asna.200911306en
dc.rights2010 WILEY-VCH Verlag GmbH & Co.en
dc.subjectmagnetohydrodynamics (MHD)en
dc.subjectturbulenceen
dc.titleMagnetohydrodynamic turbulence in a strongly magnetised plasmaen
dc.typeArticleen
dc.additionalAn open-access version is available at arXiv.org (one of the alternative locations)en
Appears in Collections:Research Papers (A&A)

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