Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...281l..73s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 281, no. 2, p. L73-L76
Astronomy and Astrophysics
Astrophysics
28
Computerized Simulation, Hydrodynamics, Penetration, Stellar Convection, Stellar Envelopes, Stellar Interiors, Stellar Models, Stellar Structure, Three Dimensional Models, Mathematical Models, Stability
Scientific paper
We study the general behavior of three-dimensional penetrative convection of deep stellar-type envelopes. The convectively unstable region may be bounded from above and below by stable layers. We confine our attention at present to the penetration into the upper stable layer. To achieve this the unstable layer is made appreciably thick and sufficient room is provided for penetration above this layer. We perform the numerical experiment for five different cases covering a range of control parameters including stratification and the total flux flowing through the region. Although we find a noticable penetration region above the convective layer in all the cases, the penetration distance is found to increase with the factor (flux / density at the top of the convective layer).
Chan Kwing L.
Roxburgh Ian W.
Singh Harinder P.
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