Self-induced flows enhance the levitation of Leidenfrost drops on liquid baths

In a study of the Leidenfrost levitation of a droplet on a hot liquid bath, rather than, classically, on an extremely hot plate, an existential feedback is revealed. The droplet induces a bath flow, whose fickle structure is explored both experimentally and theoretically. In turn, the flow drastically enhances the heat transfer to the droplet by convective means, thus ensuring such an evaporative levitation despite the poorly conducting liquid medium of the bath.