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dc.contributor.authorWatson, P.G.
dc.contributor.authorOughton, Sean
dc.contributor.authorCraig, Ian J.D.
dc.date.accessioned2008-11-04T00:58:34Z
dc.date.available2008-11-04T00:58:34Z
dc.date.issued2007-03
dc.identifier.citationWatson, P. G., Oughton, S. & Craig, I. J. D. (2007). The impact of small-scale turbulence on laminar magnetic reconnection. Physics of Plasmas, 14, 032301.en_US
dc.identifier.issn1070-664X
dc.identifier.urihttps://hdl.handle.net/10289/1258
dc.description.abstractInitial states in incompressible two-dimensional magnetohydrodynamics that are known to lead to strong current sheets and (laminar) magnetic reconnection are modified by the addition of small-scale turbulent perturbations of various energies. The evolution of these states is computed with the aim of ascertaining the influence of the turbulence on the underlying laminar solution. Two main questions are addressed here: (1) What effect does small-scale turbulence have on the energy dissipation rate of the underlying solution? (2) What is the threshold turbulent perturbation level above which the original laminar reconnective dynamics is no longer recognizable. The simulations show that while the laminar dynamics persist the dissipation rates are largely unaffected by the turbulence, other than modest increases attributable to the additional small length scales present in the new initial condition. The solutions themselves are also remarkably insensitive to small-scale turbulent perturbations unless the perturbations are large enough to undermine the integrity of the underlying cellular flow pattern. Indeed, even initial states that lead to the evolution of small-scale microscopic sheets can survive the addition of modest turbulence. The role of a large-scale organizing background magnetic field is also addressed.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherAmerican Institute of Physicsen_NZ
dc.relation.urihttp://link.aip.org/link/?PHPAEN/14/032301/1en_US
dc.rightsCopyright 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in the journal Physics of Plasmas and may be found at http://jmp.aip.org/jmp/top.jspen_US
dc.subjectmathematicsen_US
dc.subjectplasma turbulenceen_US
dc.subjectmagnetic reconnectionen_US
dc.subjectlaminar flowen_US
dc.subjectplasma magnetohydrodynamicsen_US
dc.subjectplasma transport processesen_US
dc.subjectplasma simulationen_US
dc.titleThe impact of small-scale turbulence on laminar magnetic reconnectionen_US
dc.typeJournal Articleen_US
dc.identifier.doi10.1063/1.2458595en_US
dc.relation.isPartOfPhysics of Plasmasen_NZ
pubs.begin-page032301en_NZ
pubs.elements-id32678
pubs.end-page032301en_NZ
pubs.issue3en_NZ
pubs.volume14en_NZ
uow.identifier.article-noARTN 032301en_NZ


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