著者

坂尾 富士彦

出版者

日本流体力学会

雑誌

日本流体力学会年会講演論文集 (ISSN:13428004)

巻号頁・発行日

vol.2000, pp.229-230, 2000-07-25

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A circular tube is set parallel in a circular jet flow, of the same diameter, generates sound by a feedback oscillation. The feedback loop consists from sound generation at the edge, excitation of shear layer voltex fluctuation at the nozzle exit by the sound. When the edge of the tube is cut oblique, the resulting sound is observed to reduce itself considerably. The presence of acoustic resonance gives big difference in the generated sound.