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多翼ファンの内部流動に基づく比騒音の予測


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Title: 多翼ファンの内部流動に基づく比騒音の予測
Other Titles: A Prediction on Specific Noise Based on Internal Flow of a Forward Curved Fan
Authors: 佐々木, 壮一 / 児玉, 好雄 / 林, 秀千人 / 畠山, 真
Authors (alternative): Sasaki, Soichi / Kodama, Yoshio / Hayashi, Hidechito / Hatakeyama, Makoto
Issue Date: 10-Apr-2007
Citation: ターボ機械協会 35(4), pp.229-236; 2007
Abstract: Specific noise which consists of total pressure and fan noise is available to estimate the overall performance. In this study, a prediction theory of specific noise for a forward curved fan is proposed. The specific noises of the fans that have a different number of blades were discussed based on this theory. The predicted total pressure coefficient coincided well with the experiment. The fan noise of MF120 fan (120 blades) became 3.9 dB smaller than MF40 fan (40 blades) because the relative velocity was reduced by the slip. It could be predicted quantitatively that the specific noise of MF120 fan was 2.4 dB lower than MF40 fan.
Keywords: Fan / Design / Flow Phenomenon / Performance / Noise
URI: http://hdl.handle.net/10069/20088
ISSN: 03858839
Rights: ターボ機械協会
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/20088

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