Downflows and entropy gradient reversal in deep convection

Details Downflows and entropy gradient reversal in deep convection Downflows and entropy gradient reversal in deep convection

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...389l..87c&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 389, April 20, 1992, p. L87-L90.

Physics

18

Convective Flow, Entropy, Mixing Length Flow Theory, Stellar Physics, Three Dimensional Models, Ideal Gas, Kinetic Energy, Navier-Stokes Equation

Scientific paper

A 3D numerical experiment is conducted to investigate the behavior of columnar downflows in a deep convection zone. The downflows pump low-entropy fluid from the top to the lower region and create an entropy gradient reversal inside the convection zone. The negative flux of kinetic energy carried by the downflows was found to decrease in this region.

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