This article is cited in 4 papers

Using cavitation self-oscillating modes to generate periodic pulse jets

V. V. Prokof'ev, S. A. Ocheretyanyi, E. A. Yakovlev

Research Institute of Mechanics, Lomonosov Moscow State University, 119192, Moscow, Russia

Abstract: The possibility of using jet fluid flows in the presence of an artificial cavity with a negative cavitation number to generate periodic pulsed jets is studied. Flow in a line consisting of a cavitator, an artificial gas cavity, and a converging nozzle through which liquid and gas flow into the atmosphere is investigated. Regimes in which the liquid flow is close to intermittent are experimentally found. For such flow regimes, a one-dimensional model for estimating the flow rate of liquid portions from the nozzle is proposed.

Keywords: jet, cavity, negative cavitation number, cavitation self-oscillations, surging, pulsed jets.

UDC: 532.5.528

Received: 28.09.2020
Revised: 28.09.2020
Accepted: 26.10.2020

DOI: 10.15372/PMTF20210111

 English version: Journal of Applied Mechanics and Technical Physics, 2021, 62:1, 86–95

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