Open-Channel Flow

by Subhash C. Jain

Overview

A clear, up-to-date presentation of the principles of flow in open channels

A fundamental knowledge of flow in open channels is essential for the planning and design of systems to manage water resources. Open-Channel Flow conveys this knowledge through the use of practical problems that can be solved either analytically or by simple numerical methods that do not require the use of computer software.

This completely up-to-date text includes several features not found in any other book on the subject. It derives one- dimensional equations of motion using both a simplified approach and a rigorous approach, and it explains the distinction between the momentum and mechanical energy equations. The author places great emphasis on identifying the types and locations of the control sections that are essential in analyzing flow profiles, and he includes a section on recently recognized nonunique flow profiles.

Offering numerous worked examples that are helpful in understanding the basic principles and their practical applications, this book:
* Presents the latest computational methods for profiling spatially varied and unsteady flow
* Includes end-of-section exercises that measure and build understanding
* Fully explains governing equations in algebraic and differential form
* Brings sluice-gate analysis completely up to date
* Covers artificial channel controls such as weirs, spillways, and gates, and special topics such as transitions in supercritical flow and flow through culverts

Written in metric units throughout, this excellent learning tool for senior- and graduate-level students in civil and environmental engineering programs is also a useful reference for practicing civil and environmental engineers.

Product Details

ISBN-13:	9780471356417
Publisher:	Wiley
Publication date:	10/24/2000
Pages:	344
Product dimensions:	6.40(w) x 9.69(h) x 0.83(d)

About the Author

SUBHASH C. JAIN, PhD, is Professor of Civil and Environmental Engineering at The University of Iowa in Iowa City.

Read an Excerpt

A fundamental knowledge of flow in open channels, which is the subject matter of this book, is essential for the planning and design of systems to manage water resources. This book is intended to serve as a text for use by senior undergraduate or graduate students in civil engineering. Practicing engineers will find the book useful for updating their basic comprehension of flow in open channels. The book uses metric units.

The author believes that the basic principles of flow in open channels should be taught through practical problems that can be solved either analytically or by simple numerical methods that do not require computer software. Though there is a place for a text on computational hydraulics, it should be a separate book. Accordingly, the governing equations are simplified for particular flows and the analytical or numerical solutions of the simplified equations are described in this book. For many practical problems the solution of the simplified equations is more than adequate.

Though this textbook, like earlier textbooks, deals with one-dimensional equations of motion, it has several unique features. In this book the one-dimensional equations of motion are derived using two approaches: the simplified approach and the rigorous approach. The distinction between the momentum and mechanical-energy equations is explained. A great emphasis is placed on identifying the types and locations of the control sections that are essential in analyzing flow profiles, and a section on nonunique flowprofiles that were recognized recently is also included. Analytical solutions of sluice-gate operations, which were either incorrect or inadequately explained in earlier books, are described herein. The book contains numerous worked examples that are helpful in understanding the basic principles and their practical applications.

The governing equations, both in differential and algebraic forms, are derived in Chapter 1. It s shown that the one-dimensional momentum and energy equations are very similar to each other for most flows, except for spatially varied flow. Solutions of the governing equations are presented in Chapters 2 - 8, starting with the simplest flow, that is, steady uniform flow, in Chapter 2. The concept of control sections is introduced in Chapter 3 through the theories of disturbance propagation and channel transitions. Chapter 4 deals with the analysis of gradually varied flow with emphasis on sketching flow profiles in channels with transitions. The analytical, numerical, and graphical techniques for computing flow profiles are included in Chapter 5, while Chapter 6 summarizes the analysis and computational methods for spatially varied flow. The problems of unsteady flow are divided into two types: one with negligible channel and energy slopes and the second with negligible local and connective accelerations. The unsteady flow is described in Chapters 7 and 8. Artificial channel controls, such as weirs, spillways, and gates, are included in Chapter 9 and the special topics are discussed in Chapter 10.

The author has drawn material from many sources and wishes to thank them all.

Table of Contents

Basic Equations.

Steady Uniform Flow.

Control Sections.

Gradually Varied Flow.

Computation of Gradually Varied Flow.

Spatially Varied Flow.

Unsteady Flow I.

Unsteady Flow II.

Artificial Channel Controls.

Special Topics.

References.

Index.

Editorial Reviews

"...a new and fresh exposition of important theoretical and computational treatments that are among the clearest available." (Hydraulic Engineering, September 2001)

From the Publisher

Conveys fundamental knowledge in open channel water systems through the use of practical problems that can be solved either analytically or by simple numerical methods that do not require the use of computer software. This text features coverage of one-dimensional equations of motion derived using both simplified and rigorous approaches, and an explanation of the distinction between the momentum and mechanical energy equations. Emphasis is on identifying the types and locations of the control sections that are essential in analyzing flow profiles. For senior and graduate students in civil and environmental engineering. Jain teaches civil and environmental engineering at The University of Iowa. Annotation c. Book News, Inc., Portland, OR (booknews.com)

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