The dynamics of magnetic flux rings

Details The dynamics of magnetic flux rings The dynamics of magnetic flux rings

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...411..383d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 411, no. 1, p. 383-393.

Physics

14

Convection, Dynamics, Magnetic Flux, Magnetohydrodynamic Turbulence, Solar Cycles, Solar Magnetic Field, Dynamo Theory, Flow Distribution, Solar Atmosphere, Solar Physics

Scientific paper

The evolution of magnetic fields in the presence of turbulent convection is examined using results of numerical simulations of closed magnetic flux tubes embedded in a steady 'ABC' flow field, which approximate some of the important characteristics of a turbulent convecting flow field. Three different evolutionary scenarios were found: expansion to a steady deformed ring; collapse to a compact fat flux ring, separated from the expansion type of behavior by a critical length scale; and, occasionally, evolution toward an advecting, oscillatory state. The work suggests that small-scale flows will not have a strong effect on large-scale, strong fields.

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