Franchissement d'interface et enrobage d'une sphère

Abstract : The passage of a sphere through a liquid-liquid interface is studied experimentally in the particular case of a highly viscous upper liquid. For low values of the modified Bond number β the motion of the sphere consists of two distinct regimes: a slow draining stage of the upper liquid film trapped between the sphere and the interface, and a rapid one where a liquid tail bridges the sphere to the upper phase. It is found that the volume of liquid carried away by the sphere varies as ln β and that the time necessary for breakthrough varies as l/ln β.
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Contributor : Olivier Pitois <>
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Olivier Pitois, Pascal Moucheront. Franchissement d'interface et enrobage d'une sphère. Comptes Rendus de l'Academie des Sciences Serie II, 1999, ⟨10.1016/S1287-4620(99)80091-X⟩. ⟨hal-01990822⟩



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