A new stretch‐twist‐fold model for fast dynamo

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 2007 Italy English Publisher:WileyJournal:PAMM, volume 7, pages 2,100,051-2,100,052 (issn: 1617-7061, eissn: 1617-7061,

Copyright policy )Funded by:MIUR | unidentified

Authors: Ricca, Renzo Luigi; MAGGIONI, Francesca;

doi: 10.1002/pamm.200700522

handle: 10281/8556 , 10446/21777

A new stretch‐twist‐fold model for fast dynamo

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Abstract

AbstractPreliminary results on a new Stretch‐Twist‐Fold (STF) kinematic model for fast dynamo are presented. The evolution is prescribed by equations that govern the simultaneous stretching, writhing and coiling of a magnetic flux‐tube by diffeomorphism of the initial circular configuration. Simple estimates based on minimized magnetic energy show that exponential growth of the magnetic field is indeed possible. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Country

Italy

Related Organizations

University of Bergamo
Italy
University of Milano-Bicocca
Italy

Keywords

stretch-twist-fold, dynamo, magnetic field

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