Dependence of self-oscillation period of conical jet aerator dome on the jet width of outlet section of annular nozzle / V. P. Karlikov, S. L. Tolokonnikov. //Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2014. № 3. P. 65-68 [Moscow Univ. Math. Bulletin. Vol. 69, N 3, 2014.].
The penetration of free hollow thin-walled turbulent water jets into water is studied for a conical-jet aerator with 60° apex angle. Some experimental results for the period of steady regular self-oscillations are discussed. For the jet discharge values in the range 160 ≤ Q ≤ 550 cm3/s and the elevation of the jet aerator annular nozzle above the water surface in the range 1 ≤ H ≤ 28 cm, the dependence of the self-oscillation period on the nozzle's gap width δ is determined for 0,07 ≤ δ ≤ 0,12 sm.
Key words: jet aerator, free jets, penetration, self-oscillations.