著者

中園 与一 川口 太生 山本 直樹 高坂 祐顕 瀬戸 邦聰

出版者

一般社団法人日本機械学会

雑誌

年次大会講演論文集 : JSME annual meeting

巻号頁・発行日

vol.2005, no.7, pp.205-206, 2005-09-18

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In this paper a noise reduction of hole tone influenced by some configurations such as triangular tabs and rotational vanes has been described. As a result, the most effective number of tabs should be four with a tab height of one tenth of the nozzle diameter. The rotational vane enhances the mixing enhancement of the jet, but its rotation doesn't influence the noise reduction greatly. A standing wave of pressure fluctuation for a hole tone is produced not only at the outside of the jet, but also on the inside of the jet.