To the problem of cavitational interaction of counter flows / V. P. Karlikov, A. V. Rozin, S. L. Tolokonnikov. //Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2012. ? 2. P. 65-69 [Moscow Univ. Math. Bulletin. Vol. 67, N 2, 2012.].

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

Key words: jet cavitator, counterflows, self-oscillations.