Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...259..134c&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 259, no. 1, p. 134-142.
Astronomy and Astrophysics
Astrophysics
19
Angular Momentum, Meridional Flow, Rotating Fluids, Stellar Rotation, Transport Properties, Turbulent Diffusion, Circulation Distribution, Horizontal Orientation, Particle Motion
Scientific paper
A set of numerical experiments aimed at quantifying various aspects of the horizontal turbulence (HT) ansatz of Chaboyer and Zahn (1992) is presented. It is demonstrated that the transition to 1-D behavior for both particle and angular momentum transport occurs for horizontal Reynolds numbers RH not greater than about 1, while the effective inhibition of meridional-circulation-mediated particle transport occurs for RH not greater than about 0.01. Constraints on the HT hypothesis can also be inferred from the diffusion models for FmAm and HgMn stars.
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