Open Channel Design: Fundamentals and Applications

✍ Scribed by Ernest W. Tollner

• Publisher: Wiley-Blackwell
• Year: 2021
• Tongue: English
• Leaves: 337
• Edition: 1
• Category: Library

✦ Synopsis

OPEN CHANNEL DESIGN

A fundamental knowledge of flow in open channels is essential for the planning and design of systems to manage water resources. Open channel design has applications within many fields, including civil engineering, agriculture, hydrology, geomorphology, sedimentology, environmental fluid and sediment dynamics and river engineering.

Open Channel Design: Fundamentals and Applications covers permissible velocity, tractive force, and regime theory design methodologies and applications. Hydraulic structures for flow control and measurement are covered. Flow profiles and their design implications are covered. Sediment transport mechanics and moveable boundaries in channels are introduced. Finally, a brief treatment of the St. Venant equations and Navier-Stokes equations are introduced as topics to be explored in more advanced courses. The central goal is to prepare students for work in engineering offices where they will be involved with aspects of land development and related consulting work. Students will also be prepared for advanced courses that will involve computational fluid dynamics approaches for solving 2-d and 3-d problems in advanced graduate level courses.

Offering a fresh approach, Open Channel Design: Fundamentals and Applications prepares students for work in engineering offices where they will be involved with aspects of land development and related consulting work. It also introduces the reader to software packages including Mathematica, HecRas and HY8, all widely used in professional settings.

✦ Table of Contents

Cover
Title Page
Copyright Page
Contents
Preface
Acknowledgments
About the Companion Website
Chapter 1 Basic Principles and Flow Classifications
Fluid Mechanics Foundations
Hydrologic Foundations
Presentation Organization
Problems and Questions
References
Chapter 2 Channel Fundamentals
Goals
Channel Elements and Nomenclature
General Flow Relationships
Uniform Flow Relationships
Theoretical Considerations
Natural, Compound, or Sustainable Channels
Lined Channels, Optimum Channels, and Velocity Constraints
Channel Installation
Summary
Problems and questions
References
Chapter 3 Vegetated Waterways and Bioswales
Goals
Background
Channel Planning
Basic Design Procedures
Bioswales
Vegetated Filter Strips
Temporary Linings
Summary
Problems and Questions
References
Chapter 4 Tractive Force Methods for Earthen Channels
Goals
Riprap-lined or earthen waterways (Earthen II)
Tractive force for vegetated waterways
Details and Origins of the Parabolic Cross-section
Costing channel designs
Steady uniform flow conclusion
Problems and questions
References
Chapter 5 The Energy Equation and Gradually Varied Flows
Goals
Energy Preliminaries – Velocity Profiles and Boundary Effects
Longer Transitions – Gradually Varied Flow Analyses
Conclusions
Problems and Questions
References
Chapter 6 Momentum Equation for Analyzing Varied Steady Flows and Spatially Varied Increasing Flows
Goals
Rapidly Varying Steady Flows (dQ/dt = 0, dQ/dx = 0, dy/dx varies)
Spatially Varying Steady Flow (dQ/dt = 0, dQ/dx varies, dy/dx varies)
Conclusions
Problems and Questions
References
Chapter 7 Hydraulics of Water Management Structures*
Goals
Structure Types
Hydraulic Concepts
Stage–Discharge Relationships of Weir Inlets and Flumes
Discharge Relations of Orifices and Sluice Gates Inlet Devices
Flow Hydraulics of Closed Conduits
Stage–Discharge Curves for Culverts and Spillways
Closed Conduit Systems for Urban Stormwater Collection
Ecologic Suitability
Summary and Conclusions
Problems and Questions
References
Chapter 8 Gradually Varied Unsteady Flow
Goals
Hydrologic Routing Approaches
Kinematic Wave Method
Diffusion Wave Method
Dynamic Routing
Summary and Conclusions
Problems and Questions
References
Chapter 9 Rapidly Varying Unsteady Flow Applications – Waves
Goals
Surface Irrigation
Sluice Gate and Related Operations
The Dam-Break Problem2
Oscillatory Waves
Summary and Conclusions
Problems and Questions
References
Chapter 10 Channel Design Emphasizing Fine Sediments and Survey of Alluvial Channel Sediment Transport
Goals
Alluvial Channel vs. Earthen Channel and Other Preliminaries
Early Approaches to Sediment Transport
Incipient Motion
Riprap or Revetment Specification
Bedform Descriptions and Analysis
Sediment Fall Velocity
A Probabilistic Approach to Sediment Transport
Einstein (1950)–Laursen (1958)–Graf (1971) Stage–Discharge and Other Hydraulic Calculations
Van Rijn (1984) Stage–Discharge and Total Load
Total Load by Regression Approaches
Sediment Measurement
Sediment Routing Through Detention Ponds and Streams
Software Support for Estimating Sediment Transport
Empirical Channel Design Approaches Leading to Sustainable Channels
Forces Impacting Channel Cross Sections – Stream Restoration
Summary and Future Directions
Problems and Questions
References
Appendix A Software and Selected Solutions
Excel®
Mathematica®
HydroCAD
HY-8 culverts
HEC-RAS
Software Summary Tables
Selected Symbolic Solutions
References
Appendix B Solution Charts for Vegetated Waterways Using the Permissible Velocity Method
Reference
Appendix C Selected Cost Data for Channel Excavation and Lining Materials
Appendix D Design Strategy Summary for Uniform Flow Channels
Index
EULA