报告题目：Flow Control Using Plasma Actuators

报告人：  Dr. Yongdong Cui(National University of Singapore)

报告时间：2018年12月6日上午9:30

报告地点：明故宫校区C12-619

主办单位：非定常空气动力学与流动控制工信部重点实验室、国际合作处、科协、航空宇航学院

报告内容简介：

In recent years, plasma assisted flow control has been extensively studied in many laboratories worldwide. Two commonly used are alternating current dielectric barrier discharge (AC-DBD) and nanosecond driven (ND-DBD) plasma actuators. The control mechanism of AC-DBD is the formation of a low-speed near-wall jet, due to the interaction between the charged species in the plasma and neutral particles near the surface, typically a few meters per second. While the mechanism associated with the NS-DBD plasma actuator is high amplitude thermal perturbations through Joule heating. This talk will discuss these two types of plasma actuators applied to flow separation control over an airfoil at Reynolds numbers up to half million. Pros and cons of these plasma actuators are addressed. In addition, this talk will also discuss some applications of plasma actuators to supersonic flow, such as plasma synthetic jet and plasma arcing actuators.

报告人简介：

Dr.Yongdong Cui is a Teaching Associate at the Department of Mechanical Engineering and Senior Research Scientist at Temasek Laboratories of National University of Singapore (NUS) and Group Head of the Experimental Aeroscience Group. He obtained his BEng and MEng from Nanjing University of Aeronautics and Astronautics, China, and PhD from NUS. His research interests are flow visualization and experimental techniques, vortex flow, high lift devices, drag reduction, and flow control. He is a senior member of the American Institute of Aeronautics and Astronautics (AIAA).