Transient Heat Diffusion: Infinite Wall

This lecture covers the topic of transient heat diffusion in an infinite solid with periodic heating. The instructor explains the concept of transient heat conduction under convective cooling, focusing on the lumped capacitance model and the critical dimension L. The lecture also discusses the semi-infinite wall case, highlighting different scenarios and solutions for heat transfer. Various mathematical models and equations are presented to analyze temperature evolution and heat flux in different geometries.