Comptes Rendus
Drop impingement on a deep liquid surface: study of a crater's sinking dynamics
Comptes Rendus. Mécanique, Volume 331 (2003) no. 1, pp. 61-67.

When there is a drop impact on a liquid surface, two phenomena can appear depending on the impact Weber number: either vortex generation or jet formation; in this paper the second behavior is dealt with. Based on the comparison of experimental and theoretical results, the dynamic of splashing drops on deep liquid surfaces is analyzed; this work focuses on the crater's evolution and its maximum. The liquids used are water and ethyl-alcohol. Drop impacts are made with various impact velocities by creating drops from several heights above the liquid surface. A straightforward model to describe and predict the crater's sinking evolution is proposed and agrees well with the experimental results over a range of Weber numbers from 50 to 1500.

Suite à l'un impact d'une goutte sur une surface liquide, deux phénomènes peuvent se produire en fonction du nombre de Weber à l'impact : soit la génération de vortex ou la formation d'un jet. En se basant sur des résultats expérimentaux et un modèle théorique de la dynamique de l'impact d'une goutte sur une surface liquide profonde, l'étude se focalise plus précisement sur l'évolution du cratère et son maximum. Les liquides utilisés sont de l'eau et de l'éthanol. Un modèle pour décrire et prédire l'évolution de l'enfoncement du cratère est proposé et est en bon accord avec les résultats expérimentaux pour une plage de nombre de Weber de 50 à 1500.

Received:
Accepted:
Published online:
DOI: 10.1016/S1631-0721(02)00014-1
Keywords: Fluid mechanics, Drop impact, Deep liquid surface, Crater, Modeling
Mot clés : Mécanique des fluides, Impact de goutte, Surface liquide profonde, Cratère, Modèlisation

David Brutin 1

1 Polytech' Marseille, Laboratoire IUSTI, Technopôle de Château Gombert, 5, rue Enrico Fermi, 13453 Marseille, France
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David Brutin. Drop impingement on a deep liquid surface: study of a crater's sinking dynamics. Comptes Rendus. Mécanique, Volume 331 (2003) no. 1, pp. 61-67. doi : 10.1016/S1631-0721(02)00014-1. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/S1631-0721(02)00014-1/

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