Abstract
This study investigated the use of a coaxial dielectric barrier discharge plasma actuator at a nozzle exit for jet diffusion control. In order to achieve enhanced mixing of the primary jet flow, the influence of the input voltage and frequency to the plasma actuator was examined. Intermittent control using the plasma actuator was also attempted by varying the driving frequency and the duty ratio. Based on the results of a PIV analysis, the optimum conditions for jet diffusion control were found to be a driving frequency that matched the preferred frequency and a duty ratio at 50%.
