Effect of Ultrasonic Cavitation on the Gas-Liquid Interface under Forced Aeration
R. N. Golykh1, J.-B. Carra2, V. N. Khmelev1, I. A. Manyakhin1, V. D. Minakov1, D. V. Genne1, A. R. Barsukov1
1Biysk Technological Institute-Branch of Polzunov Altai State Technical University, Biysk, Russia
2Lavrent'ev Institute of Hydrodynamics. Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: ultrasound, aeration, high-speed filming, interface, cavitation
Abstract
A setup for experimental studies of the structure, shape, and size of the gas-liquid interface under ultrasonic exposure and forced aeration has been developed. It has been found that ultrasonic exposure leads to a factor of about 1.5 increase in the interfacial area during aeration. The existence of an optimal intensity of ultrasonic exposure that provides maximum increase in interfacial area per unit supplied ultrasonic energy has been found.
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