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dc.contributor.authorZhang, Ten
dc.contributor.authorLin, ZLen
dc.contributor.authorHuang, CYen
dc.contributor.authorBorthwick, AGLen
dc.date.accessioned2021-08-22T11:20:05Z
dc.date.available2021-08-22T11:20:05Z
dc.date.issued2020-08-01en
dc.identifier.issn1674-7348en
dc.identifier.urihttp://hdl.handle.net/10026.1/17658
dc.description.abstract

Dynamo theory describes the magnetic field induced by the rotating, convecting and electrically conducting fluid in a celestial body. The classical ABC-flow model represents fast dynamo action, required to sustain such a magnetic field. In this letter, Lagrangian coherent structures (LCSs) in the ABC-flow are detected through Finite-time Lyapunov exponents (FTLE). The flow skeleton is identified by extracting intersections between repelling and attracting LCSs. For the case A = B = C = 1, the skeleton structures are made up from lines connecting two different types of stagnation points in the ABC-flow. The corresponding kinematic ABC-dynamo problem is solved using a spectral method, and the distribution of cigar-like magnetic structures visualized. Inherent links are found to exist between LCSs in the ABC-flow and induced magnetic structures, which provides insight into the mechanism behind the ABC-dynamo.

en
dc.language.isoenen
dc.titleFlow and magnetic structures in a kinematic ABC-dynamoen
dc.typeJournal Article
plymouth.issue8en
plymouth.volume63en
plymouth.publication-statusPublisheden
plymouth.journalScience China: Physics, Mechanics and Astronomyen
dc.identifier.doi10.1007/s11433-019-1568-xen
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Engineering, Computing and Mathematics
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.identifier.eissn1869-1927en
dc.rights.embargoperiodNot knownen
rioxxterms.versionofrecord10.1007/s11433-019-1568-xen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.typeJournal Article/Reviewen


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