Mean drop size resulting from the injection of a liquid jet into a high-speed gas stream.

The mean drop size generated by a liquid jet penetrating a gaseous environment is estimated. There are at least four regimes of interest which may be separated according to the relative dynamic pressure. The two regimes having the higher dynamic pressure are treated here. Primary drop generation is treated for the case when the unstable waves grow and are dominated by capillary action (region 3) as well as acceleration forces (region 4). The theoretical results are found to be reasonably consistent with experimental data found in the literature.