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Spatio-temporal scaling law of unsteady turbulence : Rayleigh-Taylor turbulence

Spatio-temporal scaling law of unsteady turbulence : Rayleigh-Taylor turbulence
非定常湍流的时空标度定律：瑞利-泰勒湍流
批准号：
21740290
负责人：
MATSUMOTO Takeshi
金额：
$1.75万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Young Scientists (B)
财政年份：
2009
资助国家：
日本
项目状态：
已结题
起止时间：
2009 至 2010
来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21740290/
关键词：
流体物理乱流の統計理論レイリー・テイラー不安定性密度変動乱流乱流の統計理

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中文摘要
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英文摘要
Under the influence of the gravity, when a heavy fluid is placed on top of a light fluid, the two fluids soon become turbulent and mix each other. This turbulent flow is known as Rayleigh-Taylor turbulence. Since it is one of the most frequently seen turbulent flows in our everyday life, understanding the nature of the turbulent fluctuation and its mixing properties has a significant value. In the present study, we measure functional dependence (so-called scaling law) of the turbulent velocity and density fluctuations on the time and spatial scales by using numerical experiments.
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