
Near-boundary Fluid Mechanics
- 1st Edition - March 7, 2025
- Imprint: Academic Press
- Author: Shu-Qing Yang
- Language: English
- Paperback ISBN:9 7 8 - 0 - 4 4 3 - 2 7 4 0 4 - 6
- eBook ISBN:9 7 8 - 0 - 4 4 3 - 2 7 4 0 5 - 3
Near-Boundary Fluid Mechanics focuses on the near-boundary region and its significance. It delves into topics like boundary shear stress, drag reduction using polymer additi… Read more

Purchase options

Institutional subscription on ScienceDirect
Request a sales quoteNear-Boundary Fluid Mechanics focuses on the near-boundary region and its significance. It delves into topics like boundary shear stress, drag reduction using polymer additives, turbulence sources, secondary currents, log-law validity, sediment transport, and more. Unlike similar books, it emphasizes the importance of the near-boundary region. This book is organized into chapters covering internal flows, external flows, loose boundary flows, and density currents. It extends Prandtl's fundamental concept to internal flows, showing how potential flow theory can describe flow without a solid boundary.
In addition, the book provides a theoretical analysis of boundary shear stress in three-dimensional flows and explores the turbulent structures in drag-reduction flows. A key feature is clarifying the role of wall-normal velocity in mass, moment, and energy transfer. Additionally, Archimedes' principle is covered to explain pressure drag and establishes a relationship between wake volume and hydrodynamic force.
In addition, the book provides a theoretical analysis of boundary shear stress in three-dimensional flows and explores the turbulent structures in drag-reduction flows. A key feature is clarifying the role of wall-normal velocity in mass, moment, and energy transfer. Additionally, Archimedes' principle is covered to explain pressure drag and establishes a relationship between wake volume and hydrodynamic force.
- Presents a specific focus on the near-boundary region and its significance
- Explores historically pivotal challenges within fluid mechanics and their impacts
- Offers a straightforward, yet effective solution to numerous enduring questions in the field
- Introduces fluid acceleration and clearly distinguishes its effects
Engineering designers and researchers (related to water and air)
- Title of Book
- Cover image
- Title page
- Table of Contents
- Copyright
- About the author
- Foreword
- Preface
- 1 Is flow region divisible responding to its boundary?
- 2 Reynolds time-average method or event-based average method?
- 3 Energy method or force method
- 4 Problems to be discussed
- Chapter 1. Introduction to governing equations
- Abstract
- Chapter Outline
- 1.1 Classification of fluid flows
- 1.2 Units and dimensional analysis
- 1.3 Historical progress in fluid mechanics
- 1.4 Progress toward solution of N-S equations
- 1.5 Airy wave theory (inviscid fluid)
- 1.6 Conclusions
- Nomenclature
- References
- Further reading
- Chapter 2. One-dimensional internal flow
- Abstract
- Chapter Outline
- 2.1 Uniform and gradually varied open channel flows (a≈0)
- 2.2 Rapid varied open-channel flows (a≠0)
- 2.3 Pipe flows
- 2.4 Flow measurement (a>0)
- 2.5 Eddy inertial force
- 2.6 Conclusions
- Nomenclature
- References
- Chapter 3. Internal, steady, and uniform two-dimensional flows (a=0)
- Abstract
- Chapter Outline
- 3.1 Flows in pipes and open channels
- 3.2 Dou Guo-Ren’s stochastic theory
- 3.3 Applications of Dou’s theory
- 3.4 Viscoelastic flow of polymer solution
- 3.5 Progress in turbulence research
- 3.6 Progress in drag reduction flow research
- 3.7 Separation flow of large roughness element
- 3.8 Conclusions
- Nomenclature
- References
- Further reading
- Chapter 4. Steady and nonuniform flows or unsteady flows (a≠0)
- Abstract
- Chapter Outline
- 4.1 Introduction
- 4.2 Unsteady 1D flow (∂/∂t≠0)
- 4.3 Steady accelerating 2D flows (∂/∂t=0, ∂u/∂x>0)
- 4.4 Steady decelerating 2D flows (∂/∂t=0, ∂u/∂x<0)
- 4.5 Unsteady 2D flows (∂/∂t≠0)
- 4.6 Conclusions
- Nomenclature
- References
- Chapter 5. Mechanism of energy transport and boundary shear stress distribution in 3D flows
- Abstract
- Chapter Outline
- 5.1 Introduction
- 5.2 Mechanism of energy transport
- 5.3 Smooth prismatic channels
- 5.4 Roughness effect
- 5.5 Einstein and meandering rivers
- 5.6 Discussion
- 5.7 Conclusions
- Nomenclature
- References
- Chapter 6. Velocity, turbulent structures, and friction factor in three-dimensional flows
- Abstract
- Chapter Outline
- 6.1 Mechanism of secondary currents in straight channels
- 6.2 Division lines, secondary currents, and turbulent structures
- 6.3 Velocity profiles along the path of energy transfer in smooth channels
- 6.4 Velocity profiles in roughened channels
- 6.5 Friction factors
- 6.6 Conclusions
- Nomenclature
- References
- Chapter 7. Time-averaged and event-averaged Navier–Stokes equations
- Abstract
- Chapter Outline
- 7.1 Introduction
- 7.2 Revisit experiment and his (1895) interpretations
- 7.3 Advances in experimental and theoretical research
- 7.4 Event-based averaged Navier–Stokes equation
- 7.5 Comparisons and predictions in cases of v>0, v<0, and v=0
- 7.6 Conclusions
- Nomenclature
- References
- Further reading
- Chapter 8. Boundary layer flow
- Abstract
- Chapter Outline
- 8.1 Introduction
- 8.2 Previous research
- 8.3 Separation condition
- 8.4 Solution of Prandtl’s equation
- 8.5 Roughened boundary layer flows
- 8.6 Conclusions
- Nomenclature
- References
- Chapter 9. Form drag and its coexistence with skin friction
- Abstract
- Chapter Outline
- 9.1 The pressure-based boundary layer and Archimedes’ second law
- 9.2 Flat plate normal to flow
- 9.3 Spheres and cylinders
- 9.4 Other shapes
- 9.5 Mechanism of 3D roughness
- 9.6 Conclusions
- Nomenclature
- References
- Further reading
- Chapter 10. Loose boundary fluid mechanics
- Abstract
- Chapter Outline
- 10.1 Introduction
- 10.2 Incipient motion
- 10.3 Bedforms and flow resistance
- 10.4 Individual's great contributions
- 10.5 Total load
- 10.6 Sediment discharge by unsteady and nonuniform flows
- 10.7 Conclusions
- Nomenclature
- References
- Chapter 11. Turbulent two-phase flow
- Abstract
- Chapter Outline
- 11.1 Governing equations of two-phase flows
- 11.2 Influence of solid particles on turbulence structures
- 11.3 How vertical motion v affects mass transfer
- 11.4 Unifying mechanism for sediment transport by water and air
- 11.5 Conclusions
- Nomenclature
- References
- Chapter 12. Density currents and downward velocity
- Abstract
- Chapter Outline
- 12.1 Plunging conditions and downward velocity
- 12.2 Density currents by sediment
- 12.3 Density currents/stratification by salinity
- 12.4 Density currents/stratification by temperature
- 12.5 Water circulation induced by winds
- 12.6 Conclusions
- Nomenclature
- References
- Index
- Edition: 1
- Published: March 7, 2025
- No. of pages (Paperback): 958
- No. of pages (eBook): 600
- Imprint: Academic Press
- Language: English
- Paperback ISBN: 9780443274046
- eBook ISBN: 9780443274053
SY
Shu-Qing Yang
Shu-Qing Yang obtained his PhD from Nanyang Technological University, Singapore, and is currently Associate Professor in the School of Civil, Mining and Environmental Engineering at the University of Wollongong, NSW, Australia. Prior to this appointment, he was Professor and Chair Professor in Korea Maritime University and South China University of Technology, respectively. His research interests include fluid mechanics, hydraulics, sediment transport, drag-reduction with polymer additives, and water resources engineering. He was a chief investigator for sedimentation problems in the Three Gorges Dam, one of the largest dams in the world. He also helped the initiation of coastal reservoirs in many countries including Shanghai, China—one of the megacities with severe water shortage caused by pollution.
Affiliations and expertise
Associate Professor, School of Civil, Mining and Environmental Engineering, University of Wollongong, NSW, AustraliaRead Near-boundary Fluid Mechanics on ScienceDirect