環境工学総合シンポジウム講演論文集
Online ISSN : 2424-2969
セッションID: 103
会議情報

共鳴を伴うキャビティ音の渦放出に関する考察
*丸田 芳幸戸井 武司
著者情報
会議録・要旨集 認証あり

詳細
抄録

Understanding the vortex flow mechanism of cavity tones is desired to control tones in aeroacoustics field. With respect to cavity tones in deep cavity with acoustic resonances the mechanism of vortex flow has not been made clear enough. When the circulation of the flow around the upstream side edge of the cavity exceeds the predetermined value, the phenomenon that the vortex might flow out is the cause of the cavity tones. It would be the estimated mechanism that the particle velocity of the resonant sound wave influences on the limitation of circulation around the upstream edge for releasing a vortex from the edge. We have tried to simulate the real phenomenon by simple numerical calculation with this assumption mechanism. As a result of trial and error, it became possible to explain the phenomenon of cavity tones with resonance by some assumption mechanism.

著者関連情報
© 2021 一般社団法人 日本機械学会
前の記事 次の記事
feedback
Top