248 振動弾性板流れ発生機に関する研究(1) : 平均的流量特性(S41-2 移動境界・連成(2),S41 移動境界・連成・振動と騒音問題)  [in Japanese] 248 Experimental Study on Flow Characteristics of a Vibrating-Plate Flow-Generator  [in Japanese]

Flow characteristics of a Vibrating Elastic Plate Flow Generator(VEPFG) was investigated experimentally. The device was a plate made vibrated perpendicularly to itself at the leading edge. The flow was found to be induced for a narrow range of frequency around the plate resonance frequency, with its maximum at the resonance. The optimum conditions were experimentally determined with respect to a group of non-dimensional parameters including flow coefficients, reduced frequency and relative frequency against the relative stiffness. The characteristics were compared with the analytically predicted ones; the prediction showed relatively similar feature and tendency of the flow behavior to the actual conditions.