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The Confrontation of Mean-Field Theories with Numerical Simulations

Published online by Cambridge University Press:  12 April 2016

Fritz Krause
Fritz Krause*
Affiliation:
Astrophysikalisches Observatorium Potsdam, O-1560 Potsdam, Fed. Rep. of Germany

Abstract

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The investigation of magnetic phenomena on the Sun is confronted with the problem of turbulently moving electrically conducting media in rotating objects. One way of attacking this complicated problem, which was at first successful, was the development of mean-field magnetohydrodynamics, where the cooperative action of the small-scale turbulence was taken into account by certain average effects. The development of more and more powerful computers now offers possibilities of calculating the small-scale phenomena in a direct way. This paper is an attempt to compare these approaches, at least as far as there are comparable results.

Type
Part I Convection and turbulence as the basis of magnetic activity
Information
International Astronomical Union Colloquium , Volume 130: The Sun and Cool Stars: activity, magnetism, dynamos , 1991 , pp. 3 - 14
Copyright
Copyright © Springer-Verlag 1991

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