CHARACTERISATION OF NS-DBD PLASMA ACTUATORS FOR SUPERSONIC FLOW CONTROL

摘要

An experimental campaign was carried out to determine the efficacy of using infrared (IR) thermography to evaluate the electrical efficiency of nanosecond dielectric barrier discharge (NS-DBD) plasma actuators. The validity of this approach was proven using Schlieren photography. The effects on efficiency of various geometric parameters (anode width, cathode width and dielectric thickness) were then examined. It was shown, in line with previous results, that decreasing dielectric thickness results in more efficient actuators. The results for the anode and cathode widths were less conclusive and further studies need to be completed in order to provide more insight.