Leidenfrost Phenomenon: Experimental Observations and Analysis

This lecture delves into the Leidenfrost phenomenon, focusing on experimental observations and analysis. It covers the formation of vapor layers, film thickness variations, and the influence of drop radius on evaporation rates. The presentation also discusses the dynamics of vapor flow, the role of pressure gradients, and the transition between different regimes. The instructor explores the impact of drop weight on vapor flow rates and the significance of the lubrication approximation. Various scaling laws and measurements related to the Leidenfrost effect are presented, shedding light on the behavior of liquid drops on hot surfaces.