Spatiotemporal evolution laws of sector-shaped dielectric-barrier-discharge plasma actuator  

作　　者：Borui ZHENG Jianbo ZHANG Shaojie QI Jianghua XU Yiche LI Yuanzhong JIN Dongliang BIAN 郑博睿;张剑波;齐少杰;续绛华;李一澈;金元中;卞栋梁(School of Automation and Information Engineering,Xi’an University of Technology,Xi’an 710048,People’s Republic of China;Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing,Xi’an 710048,People’s Republic of China;School of Mechanical and Precision Instrument Engineering,Xi’an University of Technology,Xi’an 710048,People’s Republic of China;Science and Technology on Plasma Dynamics Laboratory,Air Force Engineering University,Xi’an 710038,People’s Republic of China)

机构地区：[1]School of Automation and Information Engineering,Xi’an University of Technology,Xi’an 710048,People’s Republic of China [2]Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing,Xi’an 710048,People’s Republic of China [3]School of Mechanical and Precision Instrument Engineering,Xi’an University of Technology,Xi’an 710048,People’s Republic of China [4]Science and Technology on Plasma Dynamics Laboratory,Air Force Engineering University,Xi’an 710038,People’s Republic of China

出　　处：《Plasma Science and Technology》2024年第10期108-115,共8页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(Nos.61971345 and 52107174)。

摘　　要：Dielectric barrier discharge(DBD)plasma actuators are widely used in active flow control due to their simple design and rapid responsiveness.However,they need more effectiveness and discharge extension.To overcome these limitations,a sector-shaped dielectric barrier discharge(SS-DBD)plasma actuator with an adjustable jet angle was developed to enhance flow control effectiveness.The flow field dynamics induced by the SS-DBD plasma actuator were quantitatively analyzed using particle image velocimetry(PIV).Experimental investigations showed that precise adjustments to the actuation voltage can modulate the maximum velocity of the induced jet.Furthermore,a quasi-linear relationship between the sector-shaped angles of the SS-DBD and the deflected jet angles was established,indicating that changes in the sector-shaped angles directly influence the direction of the deflected jet.This correlation enables precise control over jet angles,significantly enhancing flow control by adjusting the SS-DBD-PA's sector-shaped angle.

关 键 词：plasma flow control plasma actuator particle image velocimetry 

分 类 号：O53[理学—等离子体物理] O461.2[理学—物理]