509 音響励起による風力タービン用翼型の空力特性の改善(環境とエネルギー)

概要

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In this study, to examine influence that sound excitation gives an aerodynamic characteristic with the boundary layer separation. The response of airfoil aerodynamic characteristics to acoustic excitation was examined experimentally for MEL071 airfoil, at a chord Reynolds number 1.0×10^5 and an angle of attack between -10° and 28°. The results show that acoustic excitation make improvements aerodynamic characteristics at low angle of attack. And the flow field on an airfoil is strongly influenced by particular frequencies than sound pressure level above laminar separation occurrence.
社団法人日本機械学会の論文
2006-09-14