Leidenfrost Effect

Droplet levitating on self-generated vapor cushion — film boiling regime

Surface Temp T_s (°C): 250

Droplet radius R: 40

Surface tilt θ°: 0

Animation speed: 1.0

Regime: Film boiling

Vapor layer h: —

Evap rate: —

Droplet T: 100°C

Leidenfrost point ~220°C for water. Below: nucleate boiling (droplet contacts surface). Above: vapor film forms, insulating the droplet. Droplet shape from balance of surface tension and vapor pressure.