Modeling of Surface Dielectric Barrier Discharge With Multi-Electrode at Atmospheric Pressure
2021
Surface dielectric barrier discharges (SDBDs) at atmospheric pressure can be achieved by direct air discharge. It can produce reactive species without expensive vacuum chambers as well as generate the ionic wind to control the airflow or accelerate actuators. For the purpose of extending the discharge zone to satisfy the larger area treatment of materiel or enhance the electrohydrodynamic (EHD) force, an efficient way is to arrange several single modules of SDBDs in series. In this article, several kinds of SDBDs with different geometries and voltage polarities of multi-electrode are studied to investigate the discharge dynamical characteristics, such as the discharge uniformity, the streamer length, the number of streamers, and the EHD force during the discharge. The spatial distribution of the electric field (or potential gradient) established by the electrode array is crucial to determine the discharge behaviors.
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