Effect of horizontal turbulent diffusion on transport by meridional circulation.
Abstract
The present examination of horizontal turbulent motion effects of chemical transport by a stellar radiation zone's meridional circulation notes that such diffusion, when sufficiently strong, inhibits the advection of a chemical element through homogenization of horizontal layers; the vertical transport then reduces to a diffusion process, and the differential rotation is smoother out in latitude. The presence of horizontal turbulence may explain the discrepancy between chemical transport and angular momentum transport as observed in the sun. The advection of angular momentum is formulated as a one-dimensional problem.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- January 1992
- Bibcode:
- 1992A&A...253..173C
- Keywords:
-
- Abundance;
- Stellar Radiation;
- Stellar Rotation;
- Stellar Structure;
- Turbulent Diffusion;
- Angular Momentum;
- Chemicals;
- Momentum Transfer;
- Pipe Flow;
- Stellar Composition;
- Astrophysics