Nanosecond Pulsed Plasma Actuators

This paper summarizes the results of Plasmaero (EU project) partners on the characterization of plasma actuators based on nanosecond pulsed discharges. Results cover electrical aspects, optical discharge visualizations and measurements of the plasma-induced pressure wave, this for quiescent and transonic flow regimes. Among the results, this study demonstrates that the induced pressure wave is composed of over and under pressure of1600 and -600 Pa, respectively. In transonic regime, the capability of the discharge to produce a pressure wave remains but this one is convected by the freestream flow.