Experimental Studies of Gas-Discharge Plasma in Air Flow

This paper presents the combustion modes of gas-discharge plasma and its quasi-stationary state in the aerodynamic unit of a laboratory facility. A research model is shown in the form of a flat channel with electrodes, pressure, and heat flow sensors. The mutual influence of gas-discharge plasma and air flow at a Mach speed of M = 2.9 is investigated. Transformation of the gas-discharge column glow in the flow and shadow patterns of shock-wave structures are recorded on video. We show the influence of the discharge energy deposition on the state of the discharge column glow and on the flow. We demonstrate the existence of a normal glow discharge in the flow, an increase in heating, and a decrease in pressure on the surface of the model.