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.
作者
郑博睿
刘园鹏
喻明浩
金元中
张倩
陈全龙
Borui Zheng;Yuanpeng Liu;Minghao Yu;Yuanzhong Jin;Qian Zhang;Quanlong Chen(School of Automation and Information Engineering,Xi'an University of Technology,Xi'an 710048,China;School of Mechanical and Precision Instrument Engineering,Xi'an University of Technology,Xi'an 710048,China;The Green Aerotechnics Research Institute of Chongqing Jiaotong University,Chongqing 401120,China)
基金
the National Natural Science Foundation of China(Grant Nos.12175177 and 61971345)
the Foundation for Key Laboratories of National Defense Science and Technology of China(Grant No.614220120030810)。
