Experimental Investigation on Flow Control over a Circular Cylinder Using Antiphase Pulsed Jets
Abstract
:1. Introduction
2. Test Equipment and Method
2.1. Wind Tunnel
2.2. Model and Support
2.3. Particle Image Velocimetry Technology
2.4. Actuator and Air Supply System
2.5. Signal Output and Acquisition System
2.6. Hot-Wire Anemometer
3. Characteristic Study of Jet in Still Air
3.1. Experimental System
3.2. Experimental Result
4. Results of Flow Separation Control
4.1. Different Slot Positions
4.2. Different Excitation Frequency
4.3. Velocity Patterns at Dual Slots and Their Intervals
4.4. In-Phase and Antiphase Pulsed Jet Excitation
4.4.1. Input Signal Description
4.4.2. Velocity Changes at Different Monitoring Points
4.4.3. Chordal Cross Section’s Velocity Field at the Interruption
4.4.4. Vortices within the Chordwise Cross Section
4.4.5. Spanwise Cross Section’s Velocity Field
4.4.6. Reduction of Frequency and Momentum
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Pan, J.; Wang, W.; Wang, X.; Li, C.; Zhao, X.; Tang, K. Experimental Investigation on Flow Control over a Circular Cylinder Using Antiphase Pulsed Jets. Actuators 2023, 12, 432. https://doi.org/10.3390/act12120432
Pan J, Wang W, Wang X, Li C, Zhao X, Tang K. Experimental Investigation on Flow Control over a Circular Cylinder Using Antiphase Pulsed Jets. Actuators. 2023; 12(12):432. https://doi.org/10.3390/act12120432
Chicago/Turabian StylePan, Jiaxin, Wanbo Wang, Xunnian Wang, Chaoqun Li, Xinhai Zhao, and Kun Tang. 2023. "Experimental Investigation on Flow Control over a Circular Cylinder Using Antiphase Pulsed Jets" Actuators 12, no. 12: 432. https://doi.org/10.3390/act12120432