| 稳定分层流动中湍流特性的研究综述 |
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| 引用本文： | 贾俊梅,刘宇陆.稳定分层流动中湍流特性的研究综述[J].力学与实践,2013,35(4):1. |
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| 作者姓名： | 贾俊梅 刘宇陆 |
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| 作者单位： | 1. 内蒙古工业大学理学院, 呼和浩特010051;
2. 上海大学, 上海市应用数学和力学研究所, 上海200072 |
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| 摘 要： | 本文总结了近60 年来分层流动中湍流特性研究的成果. 主要从两个方面进行了综述:(1) 分层流动中湍流场的演变和混合. 在这方面主要分析稳定分层对湍流混合和湍流结构的影响, 以及混合层内湍流结构的特性和混合层的演化规律. (2) 分层流动中湍流的扩散和输运. 动量和标量的逆梯度输运特性是分层湍流研究的一个重要方向;分析分层对湍流扩散的影响. 并指出了一些值得今后进一步研究的方向.
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| 关 键 词： | 分层湍流 混合层 各向异性 湍流混合 标量输运 逆梯度输运 |
| 收稿时间： | 2013-02-28 |
REVIEW ON STUDY OF TURBULENT CHARACTERISTICS IN STRATIFIED FLOW |
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| JIA Junmei,LIU Yulu.REVIEW ON STUDY OF TURBULENT CHARACTERISTICS IN STRATIFIED FLOW[J].Mechanics and Engineering,2013,35(4):1. |
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| Authors: | JIA Junmei LIU Yulu |
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| Affiliation: | 1. School of Basic Sciences, Inner Mongolia University of Technology, Hohhot 010051, China;
2. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China |
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| Abstract: | Advances in the past 60 years in the research of the characteristics in turbulent stratification is summarized in this presentation. The paper is mainly described into two parts: (1) Turbulence evolution and mixing in stratified fiuid. The effects of stable stratification on turbulent mixing and structure are mainly analyzed; The evolution of the mixing layer and the turbulent structures in the mixing layer are taken account; (2) Turbulence diffusion and transfer in stratified. Counter gradient transport phenomena for momentum and scalar in stably stratified flows are an important subject in the research of stratified turbulence; Effect of stable stratification on turbulence diffusion is studied. Finally some subjects for further studies are suggested. |
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| Keywords: | stratified turbulence mixing layer anisotropy turbulent mixing scalar transport counter gradient transport |
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