%0 Journal Article %T Liquid Jet Blasting Using Ultra-High Frequency Supersonic Pulsed Air Jet %A John T. Solomon %J Journal of Flow Control, Measurement & Visualization %P 57-75 %@ 2329-3330 %D 2022 %I Scientific Research Publishing %R 10.4236/jfcmv.2022.102004 %X This paper reports an experimental study on a liquid injector assembly integrated with an ultra-high frequency pulsed air jet that operates at 21 kHz. The active air-blasting assembly steadily injects a liquid through four micro-nozzles of 0.4 mm diameters each, positioned around a 1 mm nozzle through which the pulsed actuation jet flows out at supersonic velocity. High-frequency compressible air vortexes and shock waves generated by the injector atomize the liquid stream into finer droplets and distribute them to a larger area to improve mixing with the ambiance. The paper presents the design details and preliminary studies on the flow field characteristics of this novel injection scheme, which is a potential candidate for high-speed flow mixing and control applications. %K Ultrasonic Actuators %K Flow Control %K Liquid Blasting %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=116458