The Leidenfrost effect: from quasi-spherical droplets to puddles

Abstract

In the framework of the lubrication approximation, we derive a set of equations describing the steady bottom profile of Leidenfrost drops coupled with the vapor pressure. This allows to derive scaling laws for the geometry of the concave bubble encapsulated between the drop and the hot plate under it. The results agree with experimental observations in the case of droplets with radii smaller than the capillary length Rc as well as in the case of puddles with radii larger than Rc.

special issue in honor of Paul Clavin

References in corpus (4)

• Drop Splashing on a Dry Smooth Surface
• The Geometry of the Vapor Layer Under a Leidenfrost Drop
• Take-off of small Leidenfrost droplets
• Maximum size of drops levitated by an air cushion

Cited by in corpus (7)

• Dynamic Leidenfrost effect: relevant time- and length-scales
• Behavior of self-propelled acetone droplets in a Leidenfrost state on liquid substrates
• Self-organized oscillations of Leidenfrost drops
• Two dimensional Leidenfrost Droplets in a Hele Shaw Cell
• Spontaneous dynamics of two-dimensional Leidenfrost wheels
• Small Leidenfrost droplet dynamics
• Theory of ice-skating