Séminaire de Volfango Bertola (Univ. Liverpool, UK)

Drop impact phenomena on heated surfaces: Newtonian vs. non-Newtonian fluids
Volfango Bertola, University of Liverpool, School of Engineering

The impact of a liquid drop on a solid surface is a fascinating phenomenon, that we observe frequently in our everyday life. Despite its apparent simplicity, drop impact conceals some nontrivial and challenging physics. The interest in understanding drop impact phenomena is also practical, because they play a major role in the optimization of several applications, such as spray applications, which are ubiquitous in industrial as well as in domestic processes, from painting or cleaning surfaces to injecting fuel into internal combustion engines.
In this seminar some recent results about the impact of Newtonian and non-Newtonian drops on heated solid surfaces are reviewed, with focus on viscoelastic fluids (dilute polymer solutions) and viscoplastic (or yield-stress) fluids. 

Enregistrement vidéo du séminaire  https://nextcloud.univ-lille.fr/index.php/s/nAA3eTbXyfYD6B5