Investigation of the interaction between NS-DBD plasma-induced vortexes and separated flow over a swept wing

作     者：刘备 梁华 郑博睿 Bei LIU;Hua LIANG;Borui ZHENG

作者机构：Science and Technology on Plasma Dynamics LaboratoryAir Force Engineering UniversityXi'an 710038People's Republic of China The Green Aerotechnics Research Institute of Chongqing Jiaotong UniversityChongqing 401120People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2023年第25卷第1期

页      面：88-99页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：National Science and Technology Major Project (No.J2019-Ⅱ-0014-0035) Academician Workstation Foundation of the Green Aerotechnics Research Institute of Chonging Jiaotong University (No. GATRI2020C06003) 

主　　题：plasma-induced vortex flow separation control NS-DBD LES 

摘      要：The effect of nanosecond pulsed dielectric barrier discharge(NS-DBD) plasma flow separation control is closely related to the actuation frequency,because it involves the interaction between plasma-induced vortexes and separated *** order to study the mechanism of NS-DBD plasma flow separation control over a swept wing,especially the influence of the actuation frequency,at first,experimental studies of the actuation frequencies at 100 Hz are conducted to validate the numerical simulation ***,numerical studies of different actuation frequencies which are 50 Hz,100 Hz,160 Hz,200 Hz,500 Hz,and 1000 Hz,respectively are *** interaction between the plasma-induced vortexes and the separated flow is *** show that there is a range of the actuation frequency which includes the frequency(160 Hz) calculated by the average aerodynamic chord length to make the control effect good,but when the actuation frequencies are too low(50 Hz) or too high(1000 Hz),the control effect will get *** former is because plasmainduced vortexes disappear in a period within an actuation cycle;the latter is because plasma-induced vortexes cannot develop completely,resulting in a weak vortex intensity.