Statistical model of a self-similar turbulent plane shear layer

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题名:	Statistical model of a self-similar turbulent plane shear layer
作者:	Hong,ZC;Chen,MH
贡献者:	機械工程研究所
关键词:	2-DIMENSIONAL MIXING REGION;DENSITY-FUNCTION MODEL;PDF METHODS;FLOWS
日期:	1998
上传时间:	2010-06-29 18:04:36 (UTC+8)
出版者:	中央大學
摘要:	A turbulence probability density function (pdf) equation model is employed to salve a self-similar turbulent plane shear layer. The proper similarity variable was introduced into the problem of interest to reduce the pdf equation into a spatially one-dimensional equation, which is still three dimensional in velocity space. Then the approximate moment method is employed to salve this simplified pdf equation. By the solutions of this equation, the various one-point mean quantities are immediatelly available. Agreement of the calculated mean velocity, turbulent energy and Reynolds stress with the available experimental data is generally satisfactory indicating that the pdf equation model and the moment method can quantitatively describe the statistics of free turbulence. Additionally, the balance of turbulence energy was calculated and discussed subsequently. It shows that the pdf methods are of more potential' in revealing turbulence structure than conventional turbulence models.
關聯:	JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
显示于类别:	[機械工程研究所] 期刊論文

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