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dc.contributor.authorOughton, Sean
dc.contributor.authorPrandi, Rossella
dc.date.accessioned2014-04-03T03:57:30Z
dc.date.available2014-04-03T03:57:30Z
dc.date.copyright2000-08
dc.date.issued2000
dc.identifier.citationOughton, S., & Prandi, R. (2000). Kinetic helicity and MHD turbulence. Journal of Plasma Phycis, 64(2), 179-193.en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/8608
dc.description.abstractThe issue of dynamical anisotropy in helical three-dimensional magnetohydrodynamic turbulence with a mean magnetic field B₀ is investigated. Using high-resolution direct numerical simulations, we follow the evolution of various isotropic initial states characterized by their different values of the kinetic helicity. The cross helicity and magnetic helicity of the initial conditions are also varied. In agreement with earlier work, we find that such initial states become anisotropic in of order an eddy-turnover time, with correlation lengths parallel to B₀ remaining largely unchanged while finer scales are excited in the perpendicular directions. Moreover, it is found that the development of both the anisotropy and the energy are essentially independent of the initial level of kinetic helicity. The physics associated with this latter feature is discussed.en_NZ
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherCambridge University Pressen_NZ
dc.relation.ispartofJournal of Plasma Physics
dc.rights© 2000 Cambridge University Press
dc.subjectMHD turbulenceen_NZ
dc.titleKinetic helicity and MHD turbulenceen_NZ
dc.typeJournal Articleen_NZ
dc.identifier.doi10.1017/s0022377800008424en_NZ
dc.relation.isPartOfJournal of Plasma Physicsen_NZ
pubs.begin-page179en_NZ
pubs.elements-id28201
pubs.end-page193en_NZ
pubs.issue2en_NZ
pubs.volume64en_NZ


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