The alpha-effect in rotating convection: size matters

被引：41

作者：

Hughes, David W. ^{[1
]}

Cattaneo, Fausto ^{[2
]}

机构：

[1] Univ Leeds, Dept Appl Math, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Chicago, Ctr Astron & Astrophys, Chicago, IL 60637 USA

来源：

JOURNAL OF FLUID MECHANICS | 2008年 / 594卷

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1017/S0022112007009214

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The results of numerical simulations of convection in a rotating layer are used to compute the alpha-effect of mean-field electrodynamics. The computations are carried out for different system sizes. It is found that the outcomes can depend critically on the system size, and that physically meaningful results can only be obtained if the system size is large compared with the typical eddy size.

引用

页码：445 / 461

页数：17

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