BOUNDARY-LAYER AND SCALING PROPERTIES IN TURBULENT THERMAL-CONVECTION

被引：81
|
作者：
CHILLA, F
CILIBERTO, S
INNOCENTI, C
PAMPALONI, E
机构：
[1] IST NAZL OTTICA,I-50125 FLORENCE,ITALY
[2] ECOLE NORMALE SUPER LYON,F-69364 LYON,FRANCE
来源：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS | 1993年 / 15卷 / 09期
关键词：
D O I：
10.1007/BF02451729
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We describe an experiment which has been designed to measure both spatial and temporal features of turbulent thermal convection in a fluid layer heated from below. Specifically we have studied the dependence of the heat flow vs. the Rayleigh number, the thermal boundary layer profile, the temperature probability distribution function, the frequency and wave number power spectra. All the results have been compared with recent theories. The relevant scales of the problem, the Bolgiano and dissipative lengths, are also computed as a function of control parameters.
引用
收藏
页码：1229 / 1249
页数：21
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