The flux ejection dynamo with small diffusivity. I - Basic properties

Details The flux ejection dynamo with small diffusivity. I - Basic properties The flux ejection dynamo with small diffusivity. I - Basic properties

Jul 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..85..167p&link_type=abstract

Astrophysics and Space Science, vol. 85, no. 1-2, July 1982, p. 167-182

Astronomy and Astrophysics

Astrophysics

4

Dynamo Theory, Magnetic Flux, Turbulent Diffusion, Astronomical Models, Convection, Magnetic Field Configurations, Magnetohydrodynamic Turbulence

Scientific paper

In the first part of this paper, the flux ejection dynamo in an infinitely broad convective layer of finite depth is treated in the limit of electrical conductivity, where the convective layer upper surface is open to empty space while the lower surface is closed to the passage of fluid and field. The idealized convective overturning used allows an exact description of the symmetry and distribution of the magnetic field carried with the fluid. The total flux of the mean horizontal field grows linearly with the number of convective cycles. A discussion is given of the boundary conditions to be applied to an astronomical body whose flux ejection dynamo operates at its surface. In the second part, examples are presented which illustrate the consequences of reverse flux ejection from the surface of a convective layer of conducting fluid. Reverse flux ejection generally has the opposite effect of magnetic buoyancy, burying the fields rather than bringing them through the surface. Reverse flux injection at the surface of an alpha-omega dynamo profoundly alters the character of the solutions of dynamo equations.

Affiliated with

Also associated with

No associations

Rating

The flux ejection dynamo with small diffusivity. I - Basic properties does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The flux ejection dynamo with small diffusivity. I - Basic properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The flux ejection dynamo with small diffusivity. I - Basic properties will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1022461