River Mixing

This monograph has been designed for the engineer, scientist, ecologist or student who, although not a specialist in fluid mechanics, wishes to understand the fluid mechanics of mixing, and requires simple, predictive techniques for the analysis of important river problems, such as waste discharge.

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The main objective of this study is to help the reader make quantitative predictions of the rates of mixing tracers in rivers. Such predictions are needed in a variety of situations including the preliminary design of outfalls, the impact assessment of discharges, water resource planning, and research on biological processes in rivers. A secondary objective is to describe the theoretical basis for commonly-used mixing models so that the reader understands the mixing equations being used and chooses the correct mixing model for any given problems.