Optical emission spectroscopy measurements of quiescent atmospheric plasmas created via dielectric barrier discharge actuators

Generating an atmospheric plasma as a form of flow control is a relatively novel technique for controlling boundary layer losses, reducing drag, and increasing overall airflow efficiency of immersed bodies in fluids. One method for achieving flow control through the use of atmospheric plasma is via a pulsed-dc dielectric barrier plasma actuator. The goal of this work is to measure and calculate the plasma temperature and electron density of the atmospheric plasma generated via a pulsed-dc actuator and using optical emission spectroscopy (OES) in quiescent air conditions.