Hostname: page-component-54dcc4c588-5q6g5 Total loading time: 0 Render date: 2025-10-03T16:23:25.786Z Has data issue: false hasContentIssue false
  • English
  • Français

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: david.quere@espci.fr
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

Information

Type
Focus on Fluids
Information
Journal of Fluid Mechanics , Volume 702 , 10 July 2012 , pp. 1 - 4
Copyright
Copyright © Cambridge University Press 2012

References

1. Ashgriz, N. & Poo, J. Y. 1990 Coalescence and separation in binary collisions of liquid drops. J. Fluid Mech. 221, 183–204.CrossRefGoogle Scholar
2. Brazier-Smith, P. R., Jennings, S. G. & Latham, J. 1972 The interaction of falling water drops: coalescence. Proc. R. Soc. Lond. A 326, 393–408.Google Scholar
3. Chandra, S. & Avedisian, C. 1991 On the collision of a droplet with a solid surface. Proc. R. Soc. Lond. A 432, 13–41.Google Scholar
4. Couder, Y., Fort, E., Gautier, C. H. & Boudaoud, A. 2005 From bouncing to floating: noncoalescence of drops on a fluid bath. Phys. Rev. Lett. 94, 177801.CrossRefGoogle ScholarPubMed
5. Eggers, J., Fontelos, M. A., Josserand, C. & Zaleski, S. 2010 Drop dynamics after impact on a solid wall: theory and simulations. Phys. Fluids 22, 062101.CrossRefGoogle Scholar
6. Jiang, Y. J., Umemura, A. & Law, C. K. 1992 An experimental investigation on the collision behaviour of hydrocarbon droplets. J. Fluid Mech. 234, 171–190.CrossRefGoogle Scholar
7. Planchette, C., Lorenceau, E. & Brenn, G. 2012 The onset of fragmentation in binary liquid drop collisions. J. Fluid Mech. 702, 5–25.CrossRefGoogle Scholar
8. Tang, C., Zhang, P. & Law, C. K. 2012 Bouncing, coalescence, and separation in head-on collision of unequal-size droplets. Phys. Fluids 24, 022101.CrossRefGoogle Scholar
9. Worthington, A. M. 1895 The Splash of a Drop. Society for Promoting Christian knowledge.Google Scholar
10. Xu, L., Zhang, W. W. & Nagel, S. R. 2005 Drop splashing on a dry smooth surface. Phys. Rev. Lett. 94, 184505.CrossRefGoogle ScholarPubMed
11. Yarin, A. L. 2006 Drop impact dynamics: splashing, spreading, receding, bouncing. Annu. Rev. Fluid Mech. 38, 159–192.CrossRefGoogle Scholar