中国物理B ›› 2023, Vol. 32 ›› Issue (9): 95203-095203.doi: 10.1088/1674-1056/acae76
Borui Zheng(郑博睿)1, Yuanpeng Liu(刘园鹏)2, Minghao Yu(喻明浩)2,†, Yuanzhong Jin(金元中)2, Qian Zhang(张倩)1, and Quanlong Chen(陈全龙)3
Borui Zheng(郑博睿)1, Yuanpeng Liu(刘园鹏)2, Minghao Yu(喻明浩)2,†, Yuanzhong Jin(金元中)2, Qian Zhang(张倩)1, and Quanlong Chen(陈全龙)3
摘要: Tri-electrode sliding discharge (TED) plasma actuators are formed by adding a direct current (DC) exposed electrode to conventional dielectric barrier discharge (DBD) plasma actuators. There are three TED modes depending on the polarity and amplitude of the DC supply: DBD discharge, extended discharge and sliding discharge. This paper evaluates the electrical, aerodynamic and mechanical characteristics of a TED plasma actuator based on energy analysis, particle image velocimetry experiments and calculations using the Navier-Stokes equation. The flow control performances of different discharge modes are quantitatively analyzed based on characteristic parameters. The results show that flow control performance in both extended discharge and sliding discharge is more significant than that of DBD, mainly because of the significantly higher (up to 141%) body force of TED compared with DBD. However, conductivity loss is the primary power loss caused by the DC polarity for TED discharge. Therefore, power consumption can be reduced by optimizing the dielectric material and thickness, thus improving the flow control performance of plasma actuators.
中图分类号: (Plasma dynamics and flow)