Self-consistent theory of turbulent transport in the solar tachocline. III. Gravity waves

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

10.1051/0004-6361:20065971

To understand the fundamental physical processes important for the evolution of solar rotation and distribution of chemical species, we provide theoretical predictions for particle mixing and momentum transport in the stably stratified tachocline. By envisioning that turbulence is driven externally in the tachocline (e.g. by plume penetration), we compute the amplitude of turbulent flow, turbulent particle diffusivities, and eddy viscosity, by incorporating the effect of a strong radial differential rotation and stable stratification. We identify the different roles that the shear flow and stable stratification play in turbulence regulation and transport. Particle transport is found to be severely quenched due to stable stratification as well as radial differential rotation, especially in the radial direction with an effectively more efficient horizontal transport. The eddy viscosity is shown to become negative for parameter values typical of the tachocline, suggesting that turbulence in the stably stratified tachocline leads to a non-uniform radial differential rotation. Similar results also hold in the radiative interiors of stars, in general.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Self-consistent theory of turbulent transport in the solar tachocline. III. Gravity waves 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 Self-consistent theory of turbulent transport in the solar tachocline. III. Gravity waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-consistent theory of turbulent transport in the solar tachocline. III. Gravity waves will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-586088

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.