Air cushioning vs liquid jets in drop impact

ORAL

Abstract

Drop impact on a liquid thin film is investigated numerically, focusing on the interaction between the air cushioning and the splashing dynamics. We show that a new dimensionless number, balancing the time scale of the lubrication dynamics and that of the jet formation is at the heart of the different mechanisms at play.

Authors

  • Christophe Josserand

    • CNRS, Institut D'Alembert
  • Pascal Ray

    • CNRS, Institut D'Alembert
  • Stephane Zaleski

    • UPMC, Institut D'Alembert