The Flux Ejection Dynamo with Small Effusivity - Part Two - Illustrative Examples

Details The Flux Ejection Dynamo with Small Effusivity - Part Two - Illustrative Examples The Flux Ejection Dynamo with Small Effusivity - Part Two - Illustrative Examples

Jul 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..85..183p&link_type=abstract

Astrophysics and Space Science, Volume 85, Issue 1-2, pp. 183-201

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

A number of examples are worked out to illustrate the consequences of reverse flux ejection from the surface of a convective layer of conducting fluid. Generally the reverse flux ejection has the opposite effect of magnetic buoyancy, tending to bury the fields rather than bringing them through the surface. Even a weak flux ejection effect prevents the excape of magnetic field through the surface. Reverse flux ejection at the surface of an αω-dynamo profoundly alters the character of the solutions of the dynamo equations. Altogether, flux ejection serves to obscure the interpretation of magnetic observations. The outstanding problem now is to determine under what circumstances there exists cyclonic convection with rotations in excess of ±1/2π in the rising columns of fluid. Negative turbulent diffusion is expected to be a close companion of the flux ejection effect.

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