Hostname: page-component-745bb68f8f-lrblm Total loading time: 0 Render date: 2025-01-07T16:12:25.671Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

References

Blackman, E.G., & Field, G.F. 2000, ApJ 534, 984 CrossRefGoogle Scholar
Brandenburg, A. 2000, ApJ, astro-ph/0006186 (B2000)Google Scholar
Cattaneo, F., & Hughes, D.W. 1996, Phys. Rev. E 54, R4532 Google Scholar
Cattaneo, F., & Vainshtein, S.I. 1991, ApJ 376, L21 Google Scholar
Kleeorin, N.I., Moss, D., Rogachevskii, I., & Sokoloff, D. 2000, A&A 361, L5 Google Scholar
Krause, F., & Rädler, K.-H. 1980, Mean-Field Magnetohydrodynamics and Dynamo Theory (Pergamon Press, Oxford)Google Scholar
Moffatt, H.K. 1978, Magnetic Field Generation in Electrically Conducting Fluids (CUP, Cambridge)Google Scholar
Vainshtein, S.I., & Cattaneo, F. 1992, ApJ 393, 165 Google Scholar