Effect of Magnetic Field on Characteristics of Micro-Discharges Generated by Dielectric Barrier Discharge Actuator

Abstract

The present work studied the influence of a parallel magnetic field on the properties of micro-discharges generated in a DBD actuator under atmospheric pressure. The micro-discharge is formed when the Ac high voltage with frequency of 9 kHz was applied. As well as, the magnetic parallel field was present when the magnetic permanent was putting behind the powered electrode. The micro-discharge characteristics were measured at various horizontal distance that varying for 0 to 5 cm. Magnetic field effects on micro-discharge properties at different horizontal distances were examined. The results indicated that the influence of the powered electrode area affect the micro-discharge. The presence of the parallel magnetic field shown inverse behavior on the micro-discharge characteristics.