Abstract
Some features of self-oscillatory regimes for the cavitation interaction of coaxial water and annular gas jets with a water counterflow are studied. The dependencies of the self-oscillation frequency, the maximum displacement of a cavity toward the incident flow, and the displacement amplitude on the pipe diameter and the Froude number are found. A conclusion on the onset of self-oscillations is substantiated. The possibility of a significant increase in the counterflow range due to the gas injection in the vicinity of the counterflow is shown.
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