Reduction of turbulent boundary layer drag through dielectric-barrier-discharge plasma actuation based on the Spalding formula

作     者：Bin WU Chao GAO Feng LIU Ming XUE Yushuai WANG Borui ZHENG 武斌;高超;刘峰;薛明;王玉帅;郑博睿

作者机构：Northwestern Polytechnical UniversityXi'an 710072.People's Republic of China University of CaliforniaIrvineCA.92697-3975United States of America Xi'an University of TechnologyXi'an 710048.People'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：2019年第21卷第4期

页      面：107-114页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0827[工学-核科学与技术] 0702[理学-物理学] 

基　　金：support received from the project 'Drag Reduction via Turbulent Boundary Layer Flow Control (DRAGY)' The DRAGY project (April 2016-March 2019) is a China-EU Aeronautical Cooperation project, which is co-funded by the Ministry of Industry and Information Technology (MIIT), China, and the Directorate-General for Research and Innovation (DG RTD),European Co 

主　　题：DBD plasma actuator flow control Spalding formula drag reduction turbulent boundary layer 

摘      要：It is a very difficult task to develop a method of reducing turbulent boundary layer ***,in recent years,plasma flow control technology has demonstrated huge potential in friction drag *** further investigate this issue,a smooth plate model was designed as a testing object arranged with a bidirectional dielectric-barrier-discharge(DBD)plasma *** addition,measurement of skin friction drag was achieved by applying hot wire anemometry to obtain the velocity distribution of the turbulent boundary layer.A method of quantifying the friction drag effect was adopted based on the Spalding formula fitted with the experiment *** plasma actuation was conducted,a velocity defect occurred at the two measuring positions,compared with the no plasma control condition;this means that the DBD plasma actuation could reduce the drag successfully in the downstream of the ***,drag reduction caused by backward actuation was slightly more efficient than that caused by forward *** an increasing distance from plasma actuation,the drag-reduction effect could become *** results also show that the improvement of drag-reduction efficiency using a DBD plasma actuator can achieve about 8.78%in the local region of the experimental flat model.