HIGH-RAYLEIGH-NUMBER CONVECTION IN SPHERICAL-SHELLS

Authors
TILGNER A
Citation
A. Tilgner, HIGH-RAYLEIGH-NUMBER CONVECTION IN SPHERICAL-SHELLS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 53(5), 1996, pp. 4847-4851
Citations number
19
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
53
Issue
5
Year of publication
1996
Part
A
Pages
4847 - 4851
Database
ISI
SICI code
1063-651X(1996)53:5<4847:HCIS>2.0.ZU;2-K
Abstract
Convection in a self-gravitating spherical shell is simulated numerica lly for Prandtl numbers between 10 and 0.06. This geometry introduces asymmetries between the boundary layers whose influence on the scaling properties of the Nusselt and Reynolds numbers is investigated. The o bserved Prandtl number dependences are compared with predictions from mixing length theory and more recent theories which describe the ''har d turbulence'' regime of convection. [S1063-651X(96)03605-7]