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Numerical Simulations of Turbulent Dynamos

Published online by Cambridge University Press:  30 March 2016

Axel Brandenburg
Axel Brandenburg*
Affiliation:
NORDITA, Blegdamsvej 17, DK-2100 Copenhagen 0, Denmark; and Department of Mathematics, University of Newcastle upon Tyne, NE1 7RU, UK

Abstract

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Using a periodic box calculation it is shown that, owing to helicity conservation, a large scale field can only develop on a resistive timescale. This behaviour can be reproduced by a mean-field dynamo with α and ƞt quenchings that are equally strong and ‘catastrophic’.

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 12: Highlights of Astronomy. As presented at the XXIVth General Assembly of the IAU, 2000 , 2002 , pp. 742 - 744
Copyright
Copyright © Astronomical Society of Pacific 2002

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