Air Bubble Entrainment in Free-Surface Turbulent Shear Flows


Book Description

This book develops an analysis of the air entrainment processes in free-surface flows. These flows are investigated as homogeneous mixtures with variable density. Several types of air-water free-surface flows are studied: plunging jet flows, open channel flows, and turbulent water jets discharging into air. Experimental observations reported by the author confirm the concept that the air-water mixture behaves as a homogeneous compressible fluid in each case. This book will be of great interest to professionals working in many fields of engineering: chemical, civil, environmental, mechanical, mining, metallurgy, and nuclear. Covers new information on the air-water flow field: air bubble distributions, air-water velocity profiles, air bubble sizes and bubble-turbulence interactions Features new analysis is developed for each flow configuration and compared successfully with model and prototype data Includes over 372 references and more than 170 figures with over 60 photographs Presents useful information for design engineers and research-and-development scientists who require a better understanding of the fluid mechanics of air-water flows







Gas Transfer in Hydraulic Jumps


Book Description

A radioactive tracer technique was employed to evaluate the gas transfer occurring in hydraulic jumps characterized by a range of Froude numbers. Various relationships of gas transfer to Froude number, unit discharge, and Reynolds number are formulated and presented. These relationships are compared with other experimenter's work in the same area. Conclusions are drawn regarding applicability to prototype predictions or evaluations of gas transfer. (Author).













Gas Transfer in Hydraulic Jumps


Book Description