Unconventional Impacts (Bouncing Drops and Capture by a Small Fiber)

Friday, January 12, 2001 - 2:00pm - 2:45pm
Keller 3-180
David Quéré (École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI))
We present recent experiments on drop impacts in unusual conditions. First, impacts on superhydrophobic surfaces which repel the drops (full rebound). We are mainly interested in the shape of the drop during the contact together with the contact time which caracterizes the rebound. Second, we discuss the possible capture of a liquid drop by a solid much smaller than it (impact on a small fiber).