3827 ジェットファンに及ぼす諸因子の影響(J15-3 流体関連の騒音と振動(3)-ファン・はく離流れ-,J15 流体関連の騒音と振動,2005年度年次大会)

概要

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In two-stage jet fan, the sound pressure level and specific noise level of the symmetry blade fan became low compared to that of aerofoil blade fan. In the case of two stage jet fan, the noise of the rear rotor was higher than that of front rotor because the turbulent flow generated from the front rotor flowed into rear rotor and the rear rotor cut the wake generated from a motor support plate. When the case of an airfoil form was attached to circular power cable, the width of wake became narrow and the fan noise was reduced. It was clarified experimentally that the noise characteristics of single-stage jet fan was improved compared to that of the ordinary tow-stage jet fan.
社団法人日本機械学会の論文
2005-09-18