High-Rayleigh-number convection in spherical shells

被引：22
|
作者：
Tilgner, A
机构：
[1] Physikalisches Institut, Bayreuth, D-95440, Universität Bayreuth
来源：
PHYSICAL REVIEW E | 1996年 / 53卷 / 05期
关键词：
D O I：
10.1103/PhysRevE.53.4847
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Convection in a self-gravitating spherical shell is simulated numerically 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 observed Prandtl number dependences are compared with predictions from mixing length theory and more recent theories which describe the ''hard turbulence'' regime of convection. [S1063-651X(96)03605-7]
引用
收藏
页码：4847 / 4851
页数：5
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