The heat transfer problem in the wall region of a turbulent boundary layer

被引：2

作者：

Zhou, H ^{[1
]}

Ma, Z ^{[1
]}

Zhang, Z ^{[1
]}

机构：

[1] Tianjin Univ, Dept Mech, Tianjin 300072, Peoples R China

来源：

SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY | 1998年 / 41卷 / 11期

关键词：

coherent structure; transport of passive quantities; heat flux;

D O I：

10.1007/BF02871984

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The problem of heat transfer in the wall region of a turbulent boundary layer has been investigated. The resonant triad in the theory of hydrodynamic stability was used to obtain the velocity field induced by the coherent structures in the wall region of the turbulent boundary layer, while the small scale turbulence was represented by a simple model. By such a new approach of modeling, the 3-D temperature field is calculated, the mean temperature profile in the wall region and the Nusselt number characterizing the heat flux, which was found to be in good agreement with the experimental observations are obtained. The instantaneous temperature field had streaky structures, thus offering a mechanism for their generation found in numerical simulations.

引用

页码：1216 / 1222

页数：7

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