Drop impingement on a deep liquid surface: study of a crater's sinking dynamicsImpact d'une goutte sur une surface liquide profonde : étude de la dynamique d'enfoncement du cratère |
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Authors: | David Brutin |
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Institution: | Polytech'' Marseille, Laboratoire IUSTI, Technopôle de Château Gombert, 5, rue Enrico Fermi, 13453 Marseille, France |
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Abstract: | 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. To cite this article: D. Brutin, C. R. Mecanique 331 (2003). |
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Keywords: | Fluid mechanics Drop impact Deep liquid surface Crater Modeling Mécanique des fluides Impact de goutte Surface liquide profonde Cratère Modèlisation |
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