Environmental Hydraulics: Stratified Flows

Environmental Hydraulics: Stratified Flows

Author(s): Flemming Bo Pedersen

Published Online: 16 MAR 2013

Print ISBN: 9783540167921

Online ISBN: 9781118669709

DOI: 10.1029/LN018

About this Book

Published by the American Geophysical Union as part of the Lecture Notes on Coastal and Estuarine Studies Series, Volume 18.

The present lecture notes cover a first course in the most common types of stratified flows encountered in Environmental Hydraulics. Most of the flows are buoyancy flows, i.e. currents in which gravity acts on small density differences.
Part I presents the basic concepts of stagnant, density - stratified water, and of flowing non-miscible stratified fluids. The similarity to the (presumed) well-known open channel flow, subject to a reduced gravity, is illustrated.
Part II treats the miscible density stratified flows. In outlining the governing equations, the strong coupling between the turbulence (the mixing) and the mean flow is emphasized. The presentation and discussions of the basic governing equations are followed by illustrative examples. Separate chapters are devoted to Dense Bottom Currents, Free Penetrative Convection, Wind-driven Stratified Flow, Horizontal Buoyancy Flow and Vertical jet/plumes.
Part III presents some examples of practical problems solved on the basis of knowledge given in the present lecture notes. It is the author's experience that the topics treated in chapter 8 and in the subsequent chapters are especially well-suited for self-tuition, followed by a study-circle.

Table of contents

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  1. Part I: Non-Miscible Stratified Flows

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  2. Part II: Miscible Stratified Flows

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  3. Part III: Case Studies

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    1. Chapter 14

      Sediment Laden Buoyancy Jets (pages 169–178)

      Hans J. Henriksen, Henning Haar and Fl. Bo Pedersen

    1. Chapter 21

      On Arctic Lakes (pages 255–262)

      Niels Danielsen, Steffen K Iversen and Fl. Bo Pedersen

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