Article Dans Une Revue Journal of Fluid Mechanics Année : 2022

On making holes in liquids

Arnaud Antkowiak

Résumé

Just as a solid object would, a liquid jet or a stream of droplets impacting a free surface deforms and perforates it. This generic flow interaction, met in everyday life but also in cutting edge industrial processes, has puzzled scientists for centuries. Lee et al. ( J. Fluid Mech. , vol. 921, 2021, A8) present an experimental study of a simple droplet train interacting with a liquid bath and identify two stages in the interaction: a first where a cavity elongates and finally bursts, and a second where the interface is steadily punched by the incoming stream. Each of these regimes is explained with elementary but effective models arising from first principles, thereby revealing a full and simple picture of the physics of making holes in liquids.
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Dates et versions

hal-03600656 , version 1 (07-03-2022)

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Arnaud Antkowiak. On making holes in liquids. Journal of Fluid Mechanics, 2022, 930, pp.F1. ⟨10.1017/jfm.2021.853⟩. ⟨hal-03600656⟩
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