Theoretical modelling of buoyancy-driven turbulent flows

被引：3
|
作者：
Okamoto, M
机构：
[1] Institute of Industrial Science, University of Tokyo, Minato-ku, Tokyo 106, 7-22-1, Roppongi
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1996年 / 65卷 / 07期
关键词：
two-scale direct-interaction approximation (TSDIA); Reynolds stress; heat flux; gravity-related term; epsilon model equation; epsilon(theta) model equation;
D O I：
10.1143/JPSJ.65.2044
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Buoyancy-contributing turbulence is investigated from a viewpoint of the turbulence modelling with an aid of a two-scale direct-interaction approximation (TSDIA). Applying the spectral inertial-range form to the second-order analysis of the TSDIA, the ensemble-mean representations for the Reynolds stress, the heat flux, and model equations for the turbulent-energy and thermal-intensity dissipation rates are derived and discussed in detail.
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页码：2044 / 2059
页数：16
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