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インデューサ付き遠心ファンの乱流騒音に関する研究


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Title: インデューサ付き遠心ファンの乱流騒音に関する研究
Other Titles: Turbulent Noise Generated by a Centrifugal Fan with Inducer
Authors: 荻野, 和郎 / 児玉, 好雄 / 林, 秀千人 / 大森, 和也 / 北条, 智
Authors (alternative): Ogino, Kazuo / Kodama, Yoshio / Hayashi, Hidechito / Oomori, Kazuya / Houjyou, Satoshi
Issue Date: Jan-2003
Citation: 長崎大学工学部研究報告 Vol.33(60) p.19-27, 2003
Abstract: An investigation of aerodynamic characteristics and noise in a centrifugal fan with inducer was conducted with respect to the effects of three parameters: inlet angle, outlet anele and skew anele of the impeller. Moreover, we proposed a new method to calculate the width of wake which is an important parameter to controll the turbulent noise. lt is shown that the inlet anele hardly effects on the turbulent noise but the outlet anele and the skew anele of the blade effect on that. The ODtimum value of the outlet anele is about 48 degree and that of the skew anele is about 10 degree. The exoerimental values of the overall turbulent noise with L-weighting and A-weighting functions aereed well predicted valued.
Keywords: Fluid Machine / Centrifugal Fan with Inducer / Fan Noise / Turbulent Noise / Specific Noise Level
URI: http://hdl.handle.net/10069/5240
ISSN: 02860902
Type: Departmental Bulletin Paper
Appears in Collections:Volume 33, No. 60

Citable URI : http://hdl.handle.net/10069/5240

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