Rotational effects on convection simulated at different latitudes

Details Rotational effects on convection simulated at different latitudes Rotational effects on convection simulated at different latitudes

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...267..265p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 267, no. 1, p. 265-274.

Astronomy and Astrophysics

Astronomy

37

Digital Simulation, Rotating Plasmas, Solar Convection (Astronomy), Angular Momentum, Magnetohydrodynamic Turbulence

Scientific paper

We simulate numerically convection inside the solar convection zone under the influence of rotation at different latitudes. The computational domain is a small rectangular box with stress-free upper and lower boundaries, and with periodicity assumed in the lateral directions. We study the transport of angular momentum, which is important for the generation of differential rotation. The sign and the latitudinal dependence of the horizontal Reynolds stress component turn out to be in good agreement with correlation measurements of sunspot proper motions and with predictions from the theory of the Lambda effect. We also investigate the other components of the Reynolds stress as well as the eddy heat flux tensor, both of which are needed in mean field models of differential rotation.

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