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Shapes of rolling liquid drops

  • PASCALE AUSSILLOUS (a1) (a2) and DAVID QUÉRÉ (a2)
Abstract

We describe here liquid drops in rotation, and first classify the different shapes possible. Then, we study the behaviour of liquid marbles, which are droplets coated with hydrophobic grains, running down inclines. Because these marbles roll as they move, this device allows us to achieve revolving drops. We report the different forms generated during the descent, and quantify their size by way of scaling arguments. We finally focus on the transformations which may occur between different drop shapes.

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Journal of Fluid Mechanics
  • ISSN: 0022-1120
  • EISSN: 1469-7645
  • URL: /core/journals/journal-of-fluid-mechanics
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