Heat Transfer Phenomena Chapter 7a: Convection

This lecture covers the concept of convection, where heat is transferred from a surface to adjacent fluid molecules, increasing their energy. It explains how energy is stored in the fluid molecules and transported by their movement, leading to collisions between high-energy and low-energy molecules. The lecture also discusses natural and forced convection, the Nusselt number, boundary layers, and the impact of fluid movement on heat transfer. It delves into the characteristics of laminar and turbulent flow regimes, the development of velocity profiles, and the thermal boundary layer. Additionally, it explores methods to determine heat transfer coefficients through mathematical solutions, approximate boundary layer studies, heat-mass-momentum transfer analogies, and dimensional analysis combined with experiments.