A numerical analysis of the three-dimensional rayleigh-benard convection spectra

被引：0
作者：
I. B. Palymskii
机构：
[1] Modern Humanitarian Academy,
来源：
Izvestiya, Atmospheric and Oceanic Physics | 2009年 / 45卷
关键词：
Nusselt Number; Rayleigh Number; Oceanic Physic; Velocity Pulsation; Free Boundary Condition;
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学科分类号：
摘要：
The problem of the incompressible liquid convection between two horizontal planes heated on the underside is considered in the three-dimensional statement. The horizontal boundaries are assumed to be free of tangential stresses and isothermal. The calculated temporal spectrum of the temperature pulsations at the convection cell center at a supercriticality of 410 agrees well with the experimental measurement result. The Bolgiano-Obukhov (BO), k−11/5, k−3, and k−5, were obtain for the velocity pulsations. The Kolmogorov spectra k−5/3 and k−2.4 were obtained for the temperature pulsations. The presence of clearly identified spectra in the convective flow under study allows this process to be characterized as developed turbulence.
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页码：646 / 653
页数：7
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