| Budget Amount *help |
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2018: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
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| Outline of Final Research Achievements |
In this study, a flow control technique using pulsed discharge has been developed as a new active flow control device. The research was divided into two phases: fundamental experiments conducted under no airflow conditions and application experiments using a wind tunnel to control actual airflow. In the fundamental experiment conducted under no flow conditions, the relationship between the discharge energy and the induced gas density change was clarified. In the flow control experiment, the physical mechanism that the density variation generated by the pulsed discharge was investigated. It was found that the pulsed discharge caused density disturbance in the separated shear layer and generated vortices in the process of growth of the disturbance. The study revealed the performance of the flow control device operated by the pulsed discharge and its physical mechanism.
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