Affiliation of Author(s):能源与动力学院

Journal:Hangkong Dongli Xuebao

Abstract:A large interval plasma synthetic jet actuator (PSJA) with multiple slots under low pressure condition was designed to control the flow-field for high-altitude vehicle. Since the breakdown voltage decreased rapidly under low pressure condition, the distance of cathode and anode can be extended to 26 mm, much larger than that of traditional PSJA. This optimization also could make the cavity and output of actuator extend remarkably. The discharge characteristics and flow-field were researched by electric parameter measurement system and high-speed schlieren technology, respectively. The results showed that the initial jet velocity of the actuator reached 761 m/s, indicating the actuator had excellent application prospect in high speed flow control. In addition, comparing with the normal perforated jet generated by the actuator, the compression wave and plasma jet appeared in an ellipse shape with a large flat portion, contributing to enhance the perturbation and momentum exchange capability. © 2018, Editorial Department of Journal of Aerospace Power. All right reserved.

ISSN No.:1000-8055

Translation or Not:no

Date of Publication:2018-03-01

Co-author:张宇超,hxm

Correspondence Author:Tan Huijun