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Title: インデューサ付き遠心ファンの空力特性と騒音に関する研究
Other Titles: Characteristics of Aerodynamic and Noise for a Centrifugal Fan with Inducer
Authors: 児玉, 好雄 / 荻野, 和郎 / 林, 秀千人 / 高口, 剛 / 大森, 和也
Authors (alternative): Kodama, Yoshio / Ogino, Kazuo / Hayashi, Hidechito / Kouguchi, Tsuyoshi / Oomori, Kazuya
Issue Date: Jan-2002
Citation: 長崎大学工学部研究報告 Vol.32(58) p.47-55, 2002
Abstract: An investigation of characteristics of aerodynamic and noise for a centrifugal fan with inducer and without inducer was coducted. The noise generated by these two kinds fan consists of the discrete frequency noise and the turbulent noise. The discrete frequency noise can be disintergrated into the rotating noise and noise due to the vibration of motor. The noise level of the later is heiger than that of the former. This discrete frequency noise level can be reduced by make firm the motor support. The overall noise radiated from the fan with inducer is lower than that of which without inducer over wide flow rate. In the pressure and the efficiency, the former is heiger than the latter. The specific noise level of the former is lower than that of the latter. Therefore, the centrifugal fan with inducer is superior to that without inducer. The agreement between the predicted values and measured values of the sound pressure level was generally satisfactory.
URI: http://hdl.handle.net/10069/5184
ISSN: 02860902
Type: Departmental Bulletin Paper
Appears in Collections:Volume 32, No. 58

Citable URI : http://hdl.handle.net/10069/5184

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