3722 前縁セレーション平板翼の後流特性と空力騒音の関係(J13-4 流動励起騒音(1)(翼&エッジ形状関連),J13 流体関連の騒音と振動)

概要

論文の詳細を見る
Relation between the wake characteristics and the aerodynamic noise of a flat blade with serrate leading edge was analyzed based on a prediction theory. The effect on decreasing of the noise level of the serrate flat blade was quantitatively estimated by measuring a width and a diameter of wake vortex. When angle of attack was 30 degrees, the discrete frequency noise level of a serrate flat blade became 1.4dB smaller than that of the flat plate blade. It clarified experimentally that when the diameter of wake vortex became small by the serrated blade, the noise level generated from serrate flat plate blade became small.
一般社団法人日本機械学会の論文
2006-09-15