Author(s)

John T. Solomon

Tuskegee University, Tuskegee, AL, USA.

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.

Ultrasonic Actuators, Flow Control, Liquid Blasting

Solomon, J. (2022) Liquid Jet Blasting Using Ultra-High Frequency Supersonic Pulsed Air Jet. Journal of Flow Control, Measurement & Visualization, 10, 57-75. doi: 10.4236/jfcmv.2022.102004.