A numerical study of compressible convection.

Details A numerical study of compressible convection. A numerical study of compressible convection.

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...293..127m&link_type=abstract

Astronomy and Astrophysics 293, 127-141 (1995)

Astronomy and Astrophysics

Astrophysics

40

Convection, Hydrodynamics, Stars: Interiors

Scientific paper

We perform numerical investigations of (mainly 3D) compressible convection by using simple microphysics (closely related to piecewise polytropes). The convective layer is embedded between stable layers at the top and the bottom. Overshooting above is found to be quite effective within the present parameter range, overshooting below less so. However, consistent with prior 2D calculation the induced motions outside of the directly convectively influenced region are more developed below than above the convection zone. Typical features of the lower parts of the convection zone leading to a downwardly pointing convective flux are discussed as is the existence of a specific cell system near the lower boundary of the convection zone proper. Also, the influence of parameters is discussed. 2D convection tends to lead to more intensive convection than 3D (the physical parameters being equal).

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