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
基本信息
- 批准号:21740290
- 负责人:
- 金额:$ 1.75万
- 依托单位:
- 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
- 起止时间:2009 至 2010
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
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.
在重力的影响下,当重流体放在轻流体之上时,两种流体很快就会变得湍流并相互混合。这种湍流被称为瑞利-泰勒湍流。由于它是我们日常生活中最常见的湍流之一,因此了解湍流波动的性质及其混合特性具有重要的价值。在本研究中,我们通过数值实验测量了湍流速度和密度波动在时间和空间尺度上的函数依赖性(所谓的标度定律)。
项目成果
期刊论文数量(0)
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会议论文数量(0)
专利数量(0)
Large-eddy simulations of compressible Rayleigh–Taylor turbulence with miscible fluids using spatial gradient model
使用空间梯度模型对可混相流体可压缩瑞利泰勒湍流进行大涡模拟
- DOI:10.1063/5.0159507
- 发表时间:2023-10-01
- 期刊:
- 影响因子:4.6
- 作者:Tengfei Luo;Yunpeng Wang;Zelong Yuan;Zhou Jiang;Wenfeng Huang;Jianchun Wang
- 通讯作者:Jianchun Wang
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MATSUMOTO Takeshi其他文献
MATSUMOTO Takeshi的其他文献
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{{ truncateString('MATSUMOTO Takeshi', 18)}}的其他基金
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