Fluctuation dynamo amplified by intermittent shear bursts in convectively driven magnetohydrodynamic turbulence

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dc.contributor.authorPratt, Jane
dc.contributor.authorBusse, A.
dc.contributor.authorMüller, Wolf-Christian
dc.date.accessioned2020-05-04T10:30:17Z
dc.date.available2020-05-04T10:30:17Z
dc.date.issued2013-09-03
dc.description.abstractIntermittent large-scale high-shear flows are found to occur frequently and spontaneously in direct numerical simulations of statistically stationary turbulent Boussinesq magnetohydrodynamic (MHD) convection. The energetic steady state of the system is sustained by convective driving of the velocity field and small-scale dynamo action. The intermittent emergence of flow structures with strong velocity and magnetic shearing generates magnetic energy at an elevated rate on time scales that are longer than the characteristic time of the large-scale convective motion. The resilience of magnetic energy amplification suggests that intermittent shear bursts are a significant driver of dynamo action in turbulent magnetoconvection.en
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/11074
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-9962
dc.language.isoenen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.ddc520 Astronomie und zugeordnete Wissenschaftende
dc.subject.otherconvectionen
dc.subject.otherdynamoen
dc.subject.othermagnetohydrodynamicsen
dc.subject.otherMHDen
dc.subject.otherturbulenceen
dc.subject.otherplasmasen
dc.subject.othersunen
dc.titleFluctuation dynamo amplified by intermittent shear bursts in convectively driven magnetohydrodynamic turbulenceen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumberA76en
dcterms.bibliographicCitation.doi10.1051/0004-6361/201321613en
dcterms.bibliographicCitation.journaltitleAstronomy and Astrophysicsen
dcterms.bibliographicCitation.originalpublishernameEDP Sciencesen
dcterms.bibliographicCitation.originalpublisherplaceLes Ulisen
dcterms.bibliographicCitation.volume557en
tub.accessrights.dnbfreeen
tub.affiliationFak. 2 Mathematik und Naturwissenschaften>Zentrum für Astronomie und Astrophysikde
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.instituteZentrum für Astronomie und Astrophysikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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