par Sobac, Benjamin 
;Rednikov, Alexei ;Dorbolo, Stéphane;Colinet, Pierre
Editeur scientifique Brutin, David
Référence Droplet Wetting and Evaporation, From Pure to Complex Fluids, Academic Press - Elsevier, Ed. 1
Publication Publié, 2015
;Rednikov, Alexei ;Dorbolo, Stéphane;Colinet, Pierre Editeur scientifique Brutin, David
Référence Droplet Wetting and Evaporation, From Pure to Complex Fluids, Academic Press - Elsevier, Ed. 1
Publication Publié, 2015
Partie d'ouvrage collectif
| Résumé : | This chapter is concerned with drop levitation on a vapor layer when a volatile liquid is brought into contact with a very hot solid. This phenomenon is known as the Leidenfrost effect. A simple theory of a Leidenfrost drop covering the full range of stable shapes—that is, from small quasi-spherical droplets to larger puddles floating on a pocket-like vapor film—is presented. This modeling permits an accurate description of the geometry of the drop and of the underlying vapor film. It also provides deeper insights into heat transfer, evaporation, and flow that develop inside the vapor cushion. Finally, the model presented here can serve as a basis for studying other aspects or recent discoveries related to Leidenfrost drops. For instance, using a complement to the basic model, we show how to predict the lifetime of Leidenfrost drops. |
