EXPERIMENTAL AND THEORETICAL STUDIES ON THE COUNTER GRADIENT TRANSPORT PHENOMENA IN TURBULENT FLOWS
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摘要: 湍流中存在的动量、标量的逆梯度输运是当前湍流研究中一个十分重要的方向，它具有深刻的理论意义和重要的实用背景．本文从实验、理论两方面综述了湍流逆梯度输运的研究成果，并指出了一些值得今后进一步研究的方向．Abstract: Counter gradient transport phenomena for momentum and passive scalar in turbulent flows are an important subject in the research of turbulence. It is of great theoretical significance and serves as a practical background. This article summarizes the experimental and theoretical results on counter gradient transport phenomena. Finally some subjects for further studies are suggested.
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Key words:
- turbulence structure /
- turbulence mechanism /
- counter-gradient transport
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