Gasdynamic Flow Control by Ultrafast Local Heating in a Strongly Nonequilibrium Pulsed Plasma

Abstract— The paper presents a review of modern works on gasdynamic flow control using highly nonequilibrium pulsed plasma. main attention is paid to the effects based ultrafast (on nanosecond time scale for atmospheric pressure) local gas heating, since, at present, successes in controlling high-speed flows by means discharges are associated with this thermal mechanism. Attention physical mechanisms responsible interaction discharge flows. first part outlines most popular approaches energy deposition plasma aerodynamics: surface barrier discharges, spark and femto- optical discharges. heating air high electric fields realized these as well during decay plasma, analyzed separately. second gives numerous examples plasma-assisted It considers configuration shock waves front supersonic object, its trajectory, quasi-stationary separated layers, laminar–turbulent transition, static dynamic separation boundary layer angles attack, issues operation actuators different weather conditions use de-icing flying object.