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多層円板ファンの乱流騒音の研究


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Title: 多層円板ファンの乱流騒音の研究
Other Titles: Turbulent Noise Generated from A Multiple-Disk Fan
Authors: 児玉, 好雄 / 林, 秀千人 / 深野, 徹 / 濱田, 靖夫
Authors (alternative): Kodama, Yoshio / Hayashi, Hidechito / Fukano, Tohru / Hamada, Yasuo
Issue Date: 25-Jan-1995
Publisher: 日本機械学会
Citation: 日本機械学會論文集. B編 61(581) p.56-63 1995
Abstract: We proposed a theory for estimating the spectral density distribution and the overall sound pressure level of the turbulent noise radiated from a multiple-disk fan. In the theory, experimental data of correlations of the longitudinal and the lateral correlation length as well as the pressure spectral densities were used. The effects of the casing on the radiated noise were clarified by experiments by comparing the spectral density distributions with and without casing. The validity of theoretically obtained formula was examined with respect to the effects of parameters such as the gap between two disks, the rotational speed, the number of disks, the thickness of disks, the radius of an impeller and the flow rate. The agreement between the theoretical and the experimental results was generally satisfactory.
Keywords: Fluid Machine / Multiple-Disk Fan / Rotating Disk / Fan Noise / Turbulent Noise / Aerodynamic Noise / Acoustic Radiation from Boundary Layers
URI: http://hdl.handle.net/10069/6710
ISSN: 03875016
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/6710

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