弯曲电极下的等离子体介质阻挡放电激励器特性研究OA

As a low-speed flow control method with perturbation,plasma dielectric barrier discharge(DBD)actuator is widely used in the field of flow control.Aiming at the limitations of traditional linear electrode structure in the field of turbulent flow control,this paper designs a curved electrode structure,and focuses on the variation of discharge,optical and flow characteristics of curved electrode and linear electrode under the same experimental conditions.The results show that under the same voltage conditions,compared with the linear electrode structure,the gas temperature,discharge intensity and other parameters of the curved electrode during the discharge process are enhanced to varying degrees,and the curved electrode will make the discharge more uniform.The bending electrode changes are used to increase the gas temperature and enhance the energy distribution of the electric field,resulting in better flow control characteristics during bending time.The research results of this paper will provide technical support for the application of variable geometry electrode plasma actuator in real flow control.