Droplet Impacts Upon Liquid Surfaces

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Science  02 Nov 1984:
Vol. 226, Issue 4674, pp. 535-537
DOI: 10.1126/science.226.4674.535


The absorption and rebounding of single droplets and streams of droplets (of diameter less than 1200 micrometers) impacting upon the surface of a deep liquid have been examined experimentally. Conservation of mechanical energy and momentum have been used to explain rebounding droplet interactions, and impaction criteria have been established regarding the absorption of droplet streams. Surface tension is the dominant mechanism governing the observed behavior. Single droplets were never observed to rebound.