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dc.contributor.authorMostert, W.
dc.contributor.authorWheatley, V.
dc.contributor.authorSamtaney, Ravi
dc.contributor.authorPullin, D. I.
dc.date.accessioned2015-03-17T06:02:19Z
dc.date.available2015-03-17T06:02:19Z
dc.date.issued2014-12
dc.identifier.citationEffects of seed magnetic fields on magnetohydrodynamic implosion structure and dynamics 2014, 26 (12):126102 Physics of Fluids
dc.identifier.issn1070-6631
dc.identifier.issn1089-7666
dc.identifier.doi10.1063/1.4902432
dc.identifier.urihttp://hdl.handle.net/10754/346743
dc.description.abstractThe effects of various seed magnetic fields on the dynamics of cylindrical and spherical implosions in ideal magnetohydrodynamics are investigated. Here, we present a fundamental investigation of this problem utilizing cylindrical and spherical Riemann problems under three seed field configurations to initialize the implosions. The resulting flows are simulated numerically, revealing rich flow structures, including multiple families of magnetohydrodynamic shocks and rarefactions that interact non-linearly. We fully characterize these flow structures, examine their axi- and spherisymmetry-breaking behaviour, and provide data on asymmetry evolution for different field strengths and driving pressures for each seed field configuration. We find that out of the configurations investigated, a seed field for which the implosion centre is a saddle point in at least one plane exhibits the least degree of asymmetry during implosion.
dc.publisherAIP Publishing
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/pof2/26/12/10.1063/1.4902432
dc.rightsArchived with thanks to Physics of Fluids
dc.titleEffects of seed magnetic fields on magnetohydrodynamic implosion structure and dynamics
dc.typeArticle
dc.contributor.departmentFluid and Plasma Simulation Group (FPS)
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalPhysics of Fluids
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionSchool of Mechanical and Mining Engineering, University of Queensland, Queensland 4072, Australia
dc.contributor.institutionSchool of Mechanical and Mining Engineering, University of Queensland, Queensland 4072, Australia
dc.contributor.institutionGraduate Aerospace Laboratories, 105-50, California Institute of Technology, Pasadena, California 91125, USA
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personSamtaney, Ravi
refterms.dateFOA2018-06-14T04:46:32Z


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