Fundamentals of Open Channel Flow
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Exposes You to Current Industry-Standard Tools
Open channel flow is covered in essentially all civil and environmental engineering programs, usually by final-year undergraduate or graduate students studying water resources.
Fundamentals of Open Channel Flow outlines current theory along with clear and fully solved examples that illustrate the concepts and are geared to a first course in open channel flow. It highlights the practical computational tools students can use to solve problems, such as spreadsheet applications and the HEC-RAS program. It assumes a foundation in fluid mechanics, then adopts a deliberately logical sequence through energy, momentum, friction, gradually varied flow (first qualitative, then quantitative), and the basics of sediment transport.
Taps into Your Innate Ability to Understand Complex Concepts Visually
Open channel flow can be understood through just a few simple equations, graphs, and computational tools. For students, the book comes with downloadable animations that illustrate basic concepts visually with synchronous graphical presentation of fundamental relationships. For instructors, PowerPoint slides and solutions to end-of-chapter problems are provided.
- Delivers simple but powerful software animations
- Conveys material in three ways (analytical, graphical, computational/empirical) to aid multiple types of learners and improve overall accessibility
- Includes new fundamental equation for alternate depths
- Discusses flow transients supported by animations and calculations
- Emphasizes applications of common and useful computational tools
Developed by an author who has been teaching open channel flow to university students for the past fifteen years, Fundamentals of Open Channel Flow provides you with a detailed explanation of the basics of open channel flow using examples and animation, and offers expert guidance on the practical application of graphical and computational tools.
Table of Contents
Introduction: What is Open Channel Flow?
Quantification of Open Channel Flow
Classes of Problems
The Need for Critical Thinking
The E-y Diagram
The Froude Number
Energy Considerations on Upward and Downward Steps
Energy Considerations in Constrictions and Expansions
Chokes, Flow Accessibility, Critical Flow, and Transients
Longitudinal Changes in Flow Conditions and the Froude Number
Energy in Nonrectangular Channels
The Momentum Function
Energy and Momentum Losses
Dimensionless Energy and Momentum
Momentum in Nonrectangular Cross Sections
Friction and Uniform Flow
Shear Stress in Open Channel Flow
Chézy and Manning’s Equations
Uniform Flow and Normal Depth
Qualitative Gradually Varied Flow
Drowned Hydraulic Jump
Generalized Boundary Conditions
Conjugate Curve Concept
Quantitative Gradually Varied Flow
Standard Step Method
Variations of and Alternatives to the Standard Step Method
Conjugate Curve: Quantitative Application
HEC-RAS: an Industry Standard Software Package for Surface Water Profiles
Fundamentals of Sediment Transport
Characterization of Water and Sediment
Particle Fall Velocity: Stokes’ Law
Incipient Motion and Shields’ Diagram
Sediment Load Estimation
Sediment Estimation Accuracy and Precision
Glenn Moglen is a Research Hydrologist and Research Leader for the Hydrology and Remote Sensing Laboratory (HRSL) of the Agricultural Research Service. He was formerly Professor at Virginia Tech and Director of the Occoquan Laboratory in Manassas, Virginia, USA. He has also worked as a Research Hydrologist at the National Weather Service, as an Assistant and Associate Professor at the University of Maryland, and as a Visiting Hydrologist at the U.S. Geological Survey.
"This is one of the few books that are designed exclusively for the first course on open channel flow offered in the civil engineering undergraduate curriculum... The book will be equally helpful to the student preparing for the P.E."
—Journal of Hydrologic Engineering
"…does an excellent job of introducing the key concepts with both physical intuition, maths that is no more complicated than is needed, and examples that students learning the material for the first time can easily engage with. …If I was teaching a first course in open channel hydraulics at the current time, this book would be high on my list of candidate texts."
—Professor Garry Willgoose, The University of Newcastle, Australia
"This is an excellent book and will serve undergraduate students taking the first course in hydraulics very well… will admirably succeed in stimulating students’ interest in hydraulics... will also [be] quite useful for the practicing engineer. I will recommend the book for those who want to prepare for FE and PE examinations."
—Vijay P. Singh, Distinguished Professor, Texas A&M University, USA
"The book provides a fresh modern take on the basic principles that underpin open channel hydraulics. It builds on the author’s experiences of teaching complex topics to entry level students. It is a useful text for first year students, providing them with easily accessible material, worked examples and links to computational tools.
—Caroline Hazlewood, HR Wallingford Ltd
"… a focused work presented by the author to the upcoming generation. The special feature of the book is that in a chapter, a specific phenomenon is presented starting with a physical description followed by a derivation and ending with worked out examples. All throughout the book, coherence in presentation is maintained. As a concluding remark, this book can be used effectively as a text book for undergraduate students."
—Professor Subhasish Dey, Indian Institute of Technology Kharagpur, India
"… specifically targeted as an introduction to open channel flow. … The presentation is very clear, thorough and easy to understand. A notable feature of the book is the use of examples, solved problems, animations and practical computational tools, such as Excel; and HEC-RAS, which help the reader to fully grasp and apply the basic concepts. Overall it is an excellent textbook for an introductory course in open channel flow."
—George C. Christodoulou, National Technical U Athens
"Clear and concise presentation, effective graphics, good explanation of computer solution methods."
—Mark Giljum, P.E., Sanitation Districts of Los Angeles County