Oscillation of Primary Flow of a Supersonic Air Ejector
スポンサーリンク
概要
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In case of zero-secondary flow of a supersonic air ejector with a throat in its mixing section, the flow in the ejector oscillates for a particular range of the stagnation pressure of the primary flow. In the present paper, the flow oscillation was experimentally investigated by optical observations and pressure measurements. It has been shown that an oscillation with frequency of about 100〜150 Hz is superimposed on as oscillation with frequency of about 3〜6 Hz, and that the former oscillation is caused by the jet from the primary nozzle oscillating vertically to the center line of the ejector. The mechanism of the flow oscillation has been clarified taking the behavior of the jet from the primary nozzle and the variation of pressure in the secondary stagnation chamber into consideration.
- 一般社団法人日本機械学会の論文
著者
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Matsuo Kazuyasu
Graduate School Of Eng. Sciences Kyushu University
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Mochizuki Hiroaki
Graduate School Of Eng. Sciences Kyushu University
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Mochizuki Hiroaki
Graduate School Of Engineering Sciences Kyushu University
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NAKAMURA TATSUSHI
Ishikawajima-Harima Heavy Industries Co., Ltd.
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Nakamura Tatsushi
Ishikawajima-harima Heavy Industries Co. Ltd.
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