Flow Visualization of Sonic Jets Exhausting Counter to a Supersonic Free Stream Using Laser Induced Fluorescence Method
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概要
- 論文の詳細を見る
The flow field resulting from a sonic nose jet exhausting counter to a supersonic free stream of a Mach number of 3 was visualized by means of a laser induced fluorescence method. The experiments were conducted for various values of the ratio of counter jet total pressure to free-stream total pressure. The ratio of body diameter to jet exit diameter was taken to be 0.2 or 0.4. The results show that the structure of the opposing jets are significantly affected not only by the ratio of jet total pressure to free stream total pressure but also by the ratio of body diameter to jet exit diameter. It was also observed that at the low pressure ratios, there exists unstable flow regime. Simple analysis is applied to the prediction of the position of the free stream shock and Mach disc, and compared with the experimental result. The comparison shows a good agreement. Numerical simulation was also tried to compare with the experiments.
- 宇宙航空研究開発機構の論文
著者
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Ueno Kazuyuki
Department Of Aeronautical Engineering Kyoto University.
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Nishida Michio
Department Of Aemonautical Engineering Kyushu University
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Teshima Koji
Department Of Aeronautical Engineering Faculty Of Engineering Kyoto University
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Teshima Koji
Department Of Industrial Arts Education Kyoto University Of Education.
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Nishida Michio
Department Of Aeronautical Engineering Kyoto University.
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TANAKA Shigeki
Toyobo Research Center, Toboyo Co., Ltd.
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Tanaka Shigeki
Toyobo Research Center Toboyo Co. Ltd.
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