Using Cavitation Self-Oscillating Modes to Generate Periodic Pulse Jets
V. V. Prokof'ev, S. A. Ocheretyanyi, E. A. Yakovlev
Research Institute of Mechanics, Moscow, 119192, Russia
Keywords: jet, cavity, negative cavitation number, cavitation self-oscillations, surging, pulsed jets
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.
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