The collision of single water drops with a plane water surface was investigated experimentally to elucidate the effect of impact angle on the amount of secondary drops. When the impact angle was not too small, the measured critical impact Weber number for the formation of secondary drops agreed with the experimental data reported in literature, provided that the absolute velocity of primary droplet was used in calculating the Weber number. The ratio of total mass of secondary drops to the mass of primary droplet increased markedly with the decrease of impact angle. Whereas, when the impact angle was too small, no secondary drops were produced within the experimental ranges tested.
A Study on Secondary Drops Produced by Droplet Collision With a Liquid Film
Okawa, T, Mori, T, Shiraishi, T, & Kataoka, I. "A Study on Secondary Drops Produced by Droplet Collision With a Liquid Film." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 2: Fora. Miami, Florida, USA. July 17–20, 2006. pp. 73-77. ASME. https://doi.org/10.1115/FEDSM2006-98520
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