AM06-01-001 はく離せん断乱流の空力音発生に寄与する渦挙動の可視化(騒音(1)〜はく離流れと空力騒音〜,一般講演)

概要

論文の詳細を見る
Flow visualization of vortex motions was carried out simultaneously with measurements of radiated aerodynamic sound and fluctuating static pressure in a separated shear flow in order to reveal vortex motions contributing to aerodynamic sound generation. The flow was separated from a sharp edged fence, and smoke for the flow visualization was generated behind the fence to obtain images of smoke boundaries on the shear layer. Sound source term of Ribner's 'dilatation theory' was calculated with fluctuating static pressure measured in the flow, and relationship among the aerodynamic sound, the sound source term and visualized vortices was discussed. The results suggested that the simultaneous measurement is useful method to study mechanism of aerodynamic sound generation.
日本流体力学会の論文
2006-09-05