Introduction to Environmental Diffusion

Code: MA763 | L-T-P-C: 4-0-0-8

MA763 Introduction to Environmental Diffusion [4-0-0-8] Prerequisites: MA561 Fluid Dynamics

Fick's law. Diffusion of finite size cloud. Reflection at boundary. Diffusion through random movements, diffusion with stationary velocities, dispersion of Brownian particles, reflecting and absorbing barriers. Statistical approach environmental diffusion. Lagrangian properties of turbulence. Apparent eddy diffusivity. Application to atmospheric diffusion. Experimental basis, probability distributions of particle displacements. History of a concentrated sewage plumes. Properties of planetary boundary layer, particle displacements in a wall layer, continuous line and point sources at ground level. Elevated sources, dispersion natural streams.

Texts:

1. C. T. Scanady, Turbulent Diffusion in the Environment, D. Reidel Publications .
2. F. Pasquill, Atmospheric Diffusion, Von Nostrand.
3. A. Pekalski, Diffusion Process: Experimental, Theory and Simulations, Springer-Verlag.