Abstract
Two kinds of phenomenon have been observed when a liquid drop falls to a surface of the same liquid. The first, which can nearly always be observed, involves splash and some degree of penetration and “cleavage” and the conditions for this occurrence are identified. The experimental observations are compared with previous computational results. The second kind of colliding phenomena can be observed only by chance in an ordinary falling drop experiment and appears to be random. It includes the two phenomena investigated in this paper: the floating drop and the rolling drop.
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Cai, Y.K. Phenomena of a liquid drop falling to a liquid surface. Experiments in Fluids 7, 388–394 (1989). https://doi.org/10.1007/BF00193420
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DOI: https://doi.org/10.1007/BF00193420