| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
Research was conducted with the aim of developing a fluid control device incorporating a plasma actuator (PA) in a flip-flop nozzle (FFN) and controlling circular counter jet using this device. CFD analysis was carried out to investigate whether the jet ejecting from FFN incorporating PA oscillates or not. As a result, the magnitude of PA supplied momentum required for the jet oscillation was found. In order to dynamically control a counter jet, an acoustic excitation of the jet was attempted experimentally. It was found that a change in jet penetration distance was observed depending on the acoustic frequency and the velocity ratio of the counter jet. However, the disturbance intensity given by sound waves was not sufficient to exert a remarkable influence on the development of the counter jet and thus the development of fluid control device using FFN incorporating PA is urgently required in the future.
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