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Water colliding with oil

Published online by Cambridge University Press:  29 June 2012

David Quéré
David Quéré*
Affiliation:
Physique et Mécanique des Milieux Hétérogènes, ESPCI, 75005 Paris, France and Departments of Mechanics and Physics, École polytechnique, 91120 Palaiseau, France
*
†Email address for correspondence: [email protected]
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Abstract

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The collision of two liquid drops is both an applied question (in rain formation or combustion, for example) and a beautiful basic situation, where impact involves liquid phases, making this problem worth studying in its own right. In a stimulating paper, Planchette, Lorenceau & Brenn (J. Fluid Mech., this issue, vol. 702, 2012, pp. 5–25) consider collisions between oil and water, which often lead to water drops protected by a shell of oil. By looking at the deformations during impact, they characterize the dynamical conditions leading to single encapsulation, and derive a criterion for avoiding fragmentation.

JFM classification

Drops and Bubbles: Breakup/coalescence Interfacial Flows (free surface): Capillary flows Drops and Bubbles: Drops
Type
Focus on Fluids
Information
Journal of Fluid Mechanics , Volume 702 , 10 July 2012 , pp. 1 - 4
Copyright
Copyright © Cambridge University Press 2012

References

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