Measurement of Flows in Luminous Flames with Photoelectron Correlation Laser-Doppler Method
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概要
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In combustion research, optical signals from laser Doppler anemometry are often too weak compared to the flame luminosity for classical detection methods. This paper describes the photoelectron correlation method for detecting and processing such weak signals. First, a high-speed digital correlator up to a clock speed of 50 MHz has been devised, and a procedure to determine mean velocity, turbulence intensity, and probability density function of velocity has been established. It is shown that this method is applicable to measurement of flow velocities in a luminous diffusion flame. In a sooting flame, self-produced soot particles can be used as the scatterer, and this may alleviate restrictions imposed on tracer particles. It is suggested that the velocity probability density function by maximum entropy method yields information about intermittency in the flow. Finally, as an example, the flow field in an acetylene jet flame is given.
- 一般社団法人日本機械学会の論文
著者
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Ikegami Makoto
Faculty Of Engineering Kyoto University
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Ikegami Makoto
Fukui University Of Technology Department Of Mechanical Engineering
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SHIOJI Masahiro
Faculty of Engineering, Kyoto University
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Ishiyama Takuji
Kyoto University Graduate School Of Energy Science
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ISHIYAMA Takuji
Kawasaki Heavy Industries
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Shioji Masahiro
Kyoto University Graduate School Of Energy Science
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Shioji Masahiro
Faculty Of Engineering Kyoto University
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