Diffusion and Convection Transport

This lecture covers the microscopic description of diffusion and convection transport, emphasizing the similarities between chemical diffusion and heat conduction. It explains the random walk model on a 1D lattice and the transport of small particles in a fluid. The lecture discusses the diffusion of small particles without flow and the conservation of mass. It also delves into the mathematical similarities between chemical diffusion and heat conduction, highlighting the concept of drift velocity. The presentation concludes with a detailed analysis of net fluxes and the role of diffusion coefficients in mass conservation.