Drop impact on a solid surface : short-time self-similarity

  title={Drop impact on a solid surface : short-time self-similarity},
  author={Julien Philippi and Pierre-Yves Lagr{\'e}e and Arnaud Antkowiak},
The early stages of drop impact onto a solid surface are considered. Detailed numerical simulations and detailed asymptotic analysis of the process reveal a self-similar structure both for the velocity field and the pressure field. The latter is shown to exhibit a maximum not near the impact point, but rather at the contact line. The motion of the contact line is furthermore shown to exhibit a ‘tank-treading’ motion. These observations are apprehended with the help of a variant of Wagner theory… CONTINUE READING