Turbulence characteristics in Internal Combustion Engines
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概要
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The velocity of gas flow in the combustion chambers of two engines was measured, and the turbulence characteristics were investigated. It is shown that the auto-correlation coefficient of the fluctuating component of velocity and the normalized one-dimensional energy spectral density of turbulence are nearly determined by the integral time scale of turbulence and the turbulence Reynolds number, and the approximate expressions for the auto-correlation coefficient and energy spectral density are presented. Moreover, the relationship between the turbulence Reynolds number and the mean flow Reynolds number is examined, and the structure of the turbulent flow in engine combustion chambers is discussed.
- 一般社団法人日本機械学会の論文
著者
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Wakisaka Tomoyuki
Department Of Mechanical And Physical Engineering Graduate School Of Engineering Osaka City Universi
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Hamamoto Yoshisuke
Department Of Applied Mechanics Okayama University
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KINOSHITA Shiro
Graduate School of Engineering, Kyoto University
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Kinoshita Shiro
Graduate School Of Engineering Kyoto University
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