This book covers the essentials of fluid mechanics and explains how to apply fundamental principles to achieve optimum time and capacity efficiency with a minimum of waste. Individual chapters are devoted to the mixing tank, power consumption in turbulent flow, power consumption in viscous creeping flow, mixing in turbulent agitated tanks, and laminar mixing and gas dispersion in agitated tanks. The book provides guidelines for performing design calculations, determining design limits and validating design methodology. The book also covers safety considerations and scale-up processes, and includes technical references to assist the validation of design equations.