More on the births of jet drops from bubbles bursting on seawater surfaces

Abstract

The parameters of the births of jet drops originating from bubbles bursting on seawater surfaces are presented. This report supplements an earlier one by providing the birth times and heights of all the jet drops, not just the top. Results are given for bubble sizes from 350‐ to 1500‐μm equivalent volume radius. The ejection speeds of the jet droplets generated by a collapsing bubble and the height above the surface, as well as the time, at which all the drops break off the ascending jet have been measured. For the bubble sizes used in this study, the first drop emitted, the top drop, is closest to the surface at birth, the second is the highest, and all subsequent drops are at intermediate heights. Furthermore, each drop after the second is born at a height that is lower than the drop that preceded it. Size distributions of the jet drops from each of 10 bubble sizes are reported. They differ from size distributions published earlier in that the sizes of the lower drops are not bimodally distributed. This difference is attributed to a difference in water temperature.