Lateral Oscillation of String stretched in Colona Discharge Field : Observation of Unsteady Fluid Flow due to Corona Discharge around the String with PIV

Abstract

Lateral oscillation of a wire electrode occurs when high dc voltage is applied between wire and plate electrodes with corona discharge, and also the string that is stretched in parallel to the wire electrode. The fluid force on the wire due to corona wind was assumed to be one of main reasons for the outbreak mechanism of the oscillation. To clarify the relationship between the fluid force and the outbreak mechanism of the wire oscillation, the flow field must be confirmed. In this paper, the velocity field is measured with the PIV technique.