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dc.contributor.authorBenavides, Santiago J
dc.contributor.authorBurns, Keaton J
dc.contributor.authorGallet, Basile
dc.contributor.authorCho, James Y-K
dc.contributor.authorFlierl, Glenn R
dc.date.accessioned2023-02-15T19:07:57Z
dc.date.available2023-02-15T19:07:57Z
dc.date.issued2022
dc.identifier.urihttps://hdl.handle.net/1721.1/148082
dc.description.abstract<jats:p>Astrophysical flows are often subject to both rotation and large-scale background magnetic fields. Individually, each is known to two-dimensionalize the flow in the perpendicular plane. In realistic settings, both of these effects are simultaneously present and, importantly, need not be aligned. In this work, we numerically investigate three-dimensional forced magnetohydrodynamic turbulence subject to the competing effects of global rotation and a perpendicular background magnetic field. We focus on the case of a strong background field and find that increasing the rotation rate from zero produces significant changes in the structure of the turbulent flow. Starting with a two-dimensional inverse energy cascade at zero rotation, the flow first transitions to a forward cascade of kinetic energy, then to a shear-layer dominated regime and finally to a second shear-layer regime where the kinetic energy flux is strongly suppressed and the energy transfer is mediated by the induced magnetic field. We show that the first two transitions occur at distinct values of the Rossby number, and the third occurs at a distinct value of the Lehnert number. The three-dimensional results are confirmed using an asymptotic two-dimensional, three-component model, which allows us to extend our results to the planetary-relevant case of an arbitrary angle between the rotation vector and guide field. More generally, our results demonstrate that, when considering the simultaneous limits of strong rotation and a strong guide field, the order in which those limits are taken matters in the misaligned case.</jats:p>en_US
dc.language.isoen
dc.publisherCambridge University Press (CUP)en_US
dc.relation.isversionof10.1017/JFM.2021.968en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourcearXiven_US
dc.titleInverse cascade suppression and shear-layer formation in magnetohydrodynamic turbulence subject to a guide field and misaligned rotationen_US
dc.typeArticleen_US
dc.identifier.citationBenavides, Santiago J, Burns, Keaton J, Gallet, Basile, Cho, James Y-K and Flierl, Glenn R. 2022. "Inverse cascade suppression and shear-layer formation in magnetohydrodynamic turbulence subject to a guide field and misaligned rotation." Journal of Fluid Mechanics, 935.
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.relation.journalJournal of Fluid Mechanicsen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2023-02-15T18:56:24Z
dspace.orderedauthorsBenavides, SJ; Burns, KJ; Gallet, B; Cho, JY-K; Flierl, GRen_US
dspace.date.submission2023-02-15T18:56:25Z
mit.journal.volume935en_US
mit.licenseOPEN_ACCESS_POLICY
mit.metadata.statusAuthority Work and Publication Information Neededen_US


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