Three-dimensional simulation of penetrative convection: penetration below a convection zone.

Details Three-dimensional simulation of penetrative convection: penetration below a convection zone. Three-dimensional simulation of penetrative convection: penetration below a convection zone.

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...295..703s&link_type=abstract

Astronomy and Astrophysics, v.295, p.703

Astronomy and Astrophysics

Astrophysics

44

Convection, Hydrodynamics, Stars: Interiors

Scientific paper

We perform full three-dimensional numerical simulations to study the behaviour of penetrative compressible convection below a deep stratified stellar-type convective envelope. The domain of computations is divided into three distinct regions; the upper 2% and the lower 40% is kept convectivly stable while the middle 58% is made unstable to convection. Four series of solutions have been computed by varying the polytropic index and thus the stability of the lower stable layer. The penetration distance is found to decrease as the stability of the region beneath the convection zone is increased.

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