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NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Engineering > Bulletin > Reports of the Faculty of Engineering, Nagasaki University > Volume 23, No. 40 >


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Title: 層流ファンの揚程と騒音に関する研究(円板外径の大きさの影響)
Other Titles: Characteristics of Fluid Dynamics and Noise in Laminar Flow Fans (Effects of Diameter of Impeller on Characteristics)
Authors: 児玉, 好雄 / 田中, 清裕 / 村端, 一憲 / 林, 秀千人 / 福井, 智巳
Authors (alternative): Kodama, Yoshio / Tanaka, Kiyohiro / Murahata, Kazuhiro / Hayashi, Hidechito / Fukui, Tomomi
Issue Date: Jan-1993
Publisher: 長崎大学工学部 / Faculty of Engineering, Nagasaki University
Citation: 長崎大学工学部研究報告, 23(40), pp.17-24; 1993
Abstract: The effects of six design parameters, the diameter of impeller, the rotational frequency, the gap of two disks, the number of disks, the clearance between casing wall and front shroud, the disk thickness on pressure coefficient were theoretically clearified over a wide range of fan flow rates and the scroll of casing, the diameter of impeller on the noise radiated from fan. The agreement between the predicted and experimental results of the pressure coefficient is satisfactory if the modified equation (3) of velocity ratio Vuth/ u = f and empirical equation (4) of Km were used. The experimental resluts show that the fluid dynamic characteristics were improved and the sound pressure level rei sen by increasing the diameter of impeller.
URI: http://hdl.handle.net/10069/24389
ISSN: 02860902
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 23, No. 40

Citable URI : http://hdl.handle.net/10069/24389

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