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Journal Articles Physical Review Letters Year : 2018

Viscous Effects on Inertial Drop Formation

Abstract

The breakup of low-viscosity droplets like water is a ubiquitous and rich phenomenon. Theory predicts that in the inviscid limit one observes a finite-time singularity, giving rise to a universal power law, with a prefactor that is universal for a given density and surface tension. This universality has been proposed as a powerful tool to determine the dynamic surface tension at short time scales. We combine high-resolution experiments and simulations to show that this universality is unobservable in practice: in contrast to previous studies, we show that fluid and system parameters do play a role; notably a small amount of viscosity is sufficient to alter the breakup dynamics significantly.
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Dates and versions

hal-01989855 , version 1 (22-01-2019)

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Antoine Deblais, M. A. Herrada, I. Hauner, K. P. Velikov, T. van Roon, et al.. Viscous Effects on Inertial Drop Formation. Physical Review Letters, 2018, 121 (25), pp.254501. ⟨10.1103/physrevlett.121.254501⟩. ⟨hal-01989855⟩

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