UVP Measurements on Periodic Flow in a Flip-Flop Jet Nozzle
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概要
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This research deals with the switching mechanism of a flip-flop jet nozzle with a connecting tube, being based on the measurements of pressure in two chambers, velocity in the connecting tube and velocity distribution between two inside walls of the nozzle, i.e., reattachment walls. The authors particularly focus upon the details of switching flow field inside the nozzle, using a ultrasound-velocity-profile monitor (UVP monitor). As a result, two re-circulating flows, viz., two vortical structures, are shown on both side walls inside the nozzle. By means of the simultaneous observation of chamber pressures and connecting-tube velocity with UVP results, we show a coherent scenario of the jet-oscillation phenomenon in concern.
著者
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FUNAKI Jiro
Department of Mechanical Engineering, Doshisha University
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HIRATA Katsuya
Department of Mechanical Engineering, Doshisha University
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Matsuda Hiroyuki
Department of Biotechnology, Graduate School of Engineering, Osaka University
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TANIGAWA Hirochika
Department of Mechanical Engineering, Maizuru National College of Technology
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INOUE Tatsuya
Department of Mechanical Engineering, Doshisha University
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