Weiming Wu

Sediment Transport Dynamics (eBook, ePUB)

• Format: ePub

Produktbeschreibung

This book focuses on the fundamentals of sediment transport in surface waters. It covers sediment properties, open channel flows, sediment particle settling, incipient motion, bed forms, bed load, suspended load, total load, cohesive sediments, water-sediment two-phase flows, hyperconcentrated flows, debris flows, wave-induced sediment transport, turbidity currents, and physical modeling. Besides the primary context of river sedimentation, this book extensively covers sediment transport under coexisting waves and currents in coasts and estuaries, hyperconcentrated and debris flows in rivers, as well as turbidity currents in lakes, reservoirs, channels, and the ocean. It includes a chapter on the water-sediment two-phase flow theory, which is considered the basis of many sediment transport models. It introduces some special topics have that emerged in recent years, such as the transport of mixed cohesive and noncohesive sediments, biofilm-coated sediments, and infiltrated sand within gravel and cobble beds. The text merges classical and new knowledge of sediment transport from various sources in English and non-English literature and includes important contributions made by many scientists and engineers from all over the world. It balances the breadth, depth, fundamental importance, practical applicability, and future advancement of the covered knowledge, and can be used as a text and reference book. The chapters are arranged in a useful sequence for teaching purposes. Certain homework problems are prepared, which also highlight the important topics for instructors to select. Solutions to homework problems are available from the author by request.

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Produktdetails

• Verlag: Taylor & Francis eBooks
• Seitenzahl: 668
• Erscheinungstermin: 21. November 2023
• Englisch
• ISBN-13: 9781000936766
• Artikelnr.: 69148137

Autorenporträt

Dr. Weiming Wu is James K. Edzwald Professor of Water Engineering at Clarkson University, NY, USA. Dr. Wu earned his PhD from Wuhan University of Hydraulic and Electric Engineering, China in 1991. He was Lecturer/Associate Professor at his alma mater in 1991-1995; Research Fellow of the Alexander von Humboldt Foundation at the Institute for Hydromechanics, University of Karlsruhe, Germany in 1995-1997; and a faculty member at the National Center for Computational Hydroscience and Engineering of the University of Mississippi in 1997-2013. His research interests include fundamental sediment transport; hydro- and morphodynamics in rivers, estuaries, coastal waters and uplands; surge and wave attenuation by vegetation; interaction between surface and subsurface flows; free surface flow and sediment transport modeling; dam/levee breach and flood modeling; and water quality and aquatic ecosystem/ecotoxicology modeling. He has developed a suite of computational models for flow, sediment transport, pollutant transport, and aquatic ecology in riverine and coastal waters. He authored the book Computational River Dynamics, published through Taylor & Francis, UK in November 2007. In addition, he has published more than 150 articles on journals and conferences. He received a Best Paper Award in 2007 from the World Association for Sedimentation and Erosion Research (WASER). He is a fellow of American Society of Civil Engineers (ASCE) and a member of the International Association for Hydro-Environment Engineering and Research (IAHR). He served as Associate Editor for the International Journal of Sediment Research in 2008-2010 and for the ASCE Journal of Hydraulic Engineering in 2010-2019, and was Chair of the ASCE Computational Hydraulics Committee (2010-2012), the ASCE Task Committee on Dam/Levee Breaching (2009-2012), and the ASCE Sedimentation Committee (2016-2018). He currently serves as Vice President for WASER.

Inhaltsangabe

1. Introduction. 1.1 Origins of Sediments. 1.2 Classifications of
Sediments. 1.3 Sediment Transport Processes and Problems. 1.4
Classifications of Water-Borne Sediment Loads. 1.5 Sediment Yields in the
World's Rivers. 1.6 Historical Development of Sediment Transport Dynamics.
1.7 Coverage of This Book. 2. Properties of Water and Sediment. 2.1
Physical Properties of Water. 2.2 Sediment Density and Specific Weight. 2.3
Mineral Composition of Sediments. 2.4 Electrochemical Properties of
Sediment Particles. 2.5 Geometric Properties of Sediment Particles. 2.6
Size Gradation of Sediment Mixture. 2.7 Porosity and Dry Density of
Sediment Deposit. 2.8 Geotechnical Properties of Sediment Deposit. 2.9
Physical Properties of Sediment-Laden Water. 3. Open Channel Flows. 3.1
Classifications of Open Channel Flows. 3.2 Basic Hydrodynamic Equations.
3.3 Turbulence Characteristics. 3.4 Velocity Profiles of Uniform Turbulent
Flows. 3.5 Average Velocity and Boundary Shear Stress of Uniform Flows. 3.6
Three-Dimensional Flow Features. 3.7 Coherent Structures in Turbulent Shear
Flows. 4. Settling of Sediment Particles. 4.1 Settling Process of Sediment
Particles. 4.2 General Formula of Particle Settling Velocity. 4.3 Settling
Velocity of Spherical Particles. 4.4 Settling Velocity of Sediment
Particles. 4.5 Effects of Sediment Concentration on Settling Velocity. 4.6
Effects of Turbulence on Sediment Settling Velocity. 4.7 Measurements of
Sediment Settling Velocity. 4.8 Relationship Between Fall and Nominal
Diameters of Sediment Particles. 4.9 Time and Distance to Terminal Settling
of Sediment Particles. Appendix 4.1 Settling Velocity of Common Natural
Sediment Particles. 5. Incipient Motion of Sediments. 5.1 Drag and Lift
Forces on Bed Sediment Particles. 5.2 Incipient Motion Thresholds of
Individual Sediment Particles. 5.3 Approaches to Describing Incipient
Motion of Bed Particle Ensembles. 5.4 Critical Average Velocity for the
Incipient Motion of Uniform Sediments. 5.5 Critical Shear Stress for the
Incipient Motion of Uniform Sediments. 5.6 Incipient Motion Thresholds of
Nonuniform Sediments. 5.7 Incipient Motion Thresholds of Sediment Particles
on a Steep Slope. 5.8 Other Factors Affecting the Incipient Motion of
Sediment Particles. 5.9 Probabilities of Sediment Entrainment. Appendix 5.1
Comparison of Incipient Rolling, Sliding, and Lifting Thresholds of
Spheres. Appendix 5.2 Comparison of Reference Thresholds of Sediment
Incipient Motion. 6. Bed Forms. 6.1 Classifications of Bed Forms. 6.2
Development Mechanisms and Regimes of Bed Forms. 6.3 Dimensions and Speeds
of Equilibrium Bed Forms. 6.4 Partition of Grain and Form Resistances. 6.5
Resistance Formulas of Sand-Bed Rivers. 6.6 Resistance Formulas for Gravel-
and Cobble-Bed Rivers. 6.7 Comments on Movable Bed Roughness Formulas. 7.
Bed-Load Transport. 7.1 Bed-Load Regimes. 7.2 Bed-Load Particle Dynamics.
7.3 Average Characteristics of Bed-Load Particle Motion. 7.4 Unisized
Bed-Load Transport Capacity. 7.5 Multisized Bed-Load Transport Capacity.
7.6 Comparison of Bed-Load Formulas. 7.7 Effect of Steep Slope on Bed Load.
7.8 Fluctuations of Bed Load. 7.9 Measurements of Bed Load. 8.
Suspended-Load Transport. 8.1 Suspended-Load Transport Processes. 8.2
Criteria of Incipient Suspension. 8.3 Time-Averaged Transport Equation for
Suspended Load. 8.4 Vertical Distribution of Suspended-Load Concentration.
8.5 Depth-Averaged Concentration of Suspended Load. 8.6 Near-Bed
Concentration of Suspended Load. 8.7 Transport Capacity of Suspended Load.
8.8 Nonequilibrium Transport of Suspended Load. 8.9 Measurements of
Suspended Load. Appendix 8.1 Calculations of Einstein Integrals. 9.
Total-Load Transport. 9.1 Total Transport Capacity of Bed-Material Load.
9.2 Fractional Transport Capacity of Bed-Material Load. 9.3 Comparison of
Bed-Material Load Formulas. 9.4 Sediment Rating Curve. 9.5 Pickup Rate of
Noncohesive Sediments. 9.6 Wash Load. 9.7 Infiltrated Sand Transport in
Immobile Gravel and Cobble Beds. 10. Cohesive Sediment Transport. 10.1
Distinctive Features of Cohesive Sediments. 10.2 Settling and Deposition of
Cohesive Sediments. 10.3 Erosion of Cohesive Sediments. 10.4 Exclusive
Versus Continuous Erosion and Deposition. 10.5 Transport of Mixed Cohesive
and Noncohesive Sediments. 10.6 Biological Effects on Sediment Transport.
10.7 Comments on Cohesive Sediment Transport. 11. Sediment-Laden Two-Phase
Flows. 11.1 Two-Phase Perspective of Sediment-Laden Flows. 11.2 Two-Fluid
Model of Sediment-Laden Flows. 11.3 Mixture Model of Sediment-Laden Flows.
11.4 Applications to Steady Uniform Sediment-Laden Flows. 12.
Hyperconcentrated and Debris Flows. 12.1 Classifications of
Hyperconcentrated and Debris Flows. 12.2 Rheology of Hyperconcentrated
Sediment Slurries. 12.3 Uniform Muddy Flows. 12.4 Uniform Granular Flows.
12.5 Uniform Mixed-Type Hyperconcentrated and Debris Flows. 12.6
Gradually-Varied Hyperconcentrated and Debris Flows. 12.7 Rapidly-Varied
Hyperconcentrated and Debris Flows. 12.8 Morphological Features of
Hyperconcentrated and Debris Flows. 13. Coastal Sediment Transport. 13.1
Wave Propagation. 13.2 Wave Boundary Layer and Bed Shear Stress. 13.3
Sediment Transport in General Wave Environments. 13.4 Wave-Induced Currents
and Sediment Transport in the Surf Zone. 13.5 Wave Motions and Sediment
Transport in the Swash Zone. 14. Turbidity Currents. 14.1 General
Considerations. 14.2 Uniform Turbidity Currents. 14.3 Gradually-Varied
Turbidity Currents. 14.4 Rapidly-Varied Turbidity Currents. 14.5 Turbidity
Currents in Reservoirs. 14.6 Turbidity Currents in Channels Open to
Sediment-Laden Water. 14.7 Turbidity Currents in Seas and Lakes. 15.
Physical Modeling and Similitude. 15.1 General Similitude Theories and
Analytical Methods. 15.2 Scale Models of Open Channel Flows. 15.3 Scale
Models of Sediment Transport Over Alluvial Beds. 15.4 Scale Models of Other
Sediment Transport Processes. 15.5 Comments on Scale Models of Flow and
Sediment Transport.