Design of Experimental System for Corona Discharge in High-Velocity Airflow

摘要

Corona discharge is a kind of self-sustained discharge that emerges in daily life, industrial production and other fields. A variety of works have been done on this issue. And corona discharge in high-velocity airflow is of great significant especially. In this paper, an experimental system is proposed and assembled, to research the characteristics of corona discharge in high-velocity airflow and the differences between corona discharge with and without high-velocity airflow. By comparing simulation results of velocity field and pressure field of air amplifier and Laval nozzle, proper airflow supply device is selected. The experiment cabin is designed following the requirements of corona discharge to airflow by mathematical calculation. We also design the discharge device and receiving device by theoretical analyses. Experiments of corona discharge with and without high-velocity airflow are both done in the system. Significant distinctions showing the impact on corona discharge of high-velocity airflow is observed.