LARGE-SCALE STRUCTURE IN RAYLEIGH-BENARD CONVECTION WITH IMPENETRABLE SIDEWALLS

被引：8
|
作者：
KERR, RM
HERRING, JR
BRANDENBURG, A
机构：
[1] Geophysical Turbulence Program, National Center for Atmospheric Research, Boulder, CO 80307
来源：
CHAOS SOLITONS & FRACTALS | 1995年 / 5卷 / 10期
关键词：
D O I：
10.1016/0960-0779(94)00181-O
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
In numerical Rayleigh-Benard convection at Rayleigh number 10(5) and 5 x 10(5), Prandtl numbers 0.07, 0.7, and 7, and aspect ratios 3, 4 or 6, large-scale patterns are sought. For aspect ratio 6 and Pr = 0.7, saturation of the mean velocity is only observed after 20 convective timescales. Three-dimensional visualization shows a strong influence of the confining sidewalls and corners for all Prandtl numbers. Sweeping motions are observed for Pr = 7.
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页码：2047 / &
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