Near-boundary Fluid Mechanics
- 1st Edition - June 11, 2025
- Latest edition
- Author: Shu-Qing Yang
- Language: English
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
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 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)
Chapter 1: Introduction and Governing Equations;
1.1 Classification of fluid flows
1.2 Units and dimensional analysis.
1.3 Brief review of historical progress.
1.4 Progress toward solution of N-S equations
1.5 Wave theory References
Chapter 2: One-dimensional Internal Flow
2.1 Open Channel Flows (a ≈ 0)
2.2 Open-Channel Flows (a ≠ 0)
2.3 Pipe flows
2.4 Flow measurement References
Chapter 3: Internal, Steady and Uniform 2-D Flows
3.1 Turbulent structures in pipe and open channel flows
3.2 Dou’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 DR flow research
3.7 Separation Flow of Large Roughness Element References
Chapter 4: Steady and Non-uniform Flows or Unsteady Flows
4.1 Introduction
4.2 Unsteady 1-D flow (∂/∂t ≠ 0)
4.3 Steady accelerating 2-D flows (∂/∂t = 0, ∂u/∂x > 0)
4.4 Steady decelerating 2-D flows (∂/∂t = 0, ∂u/∂x≠ 0)
4.5 Unsteady 2-D flows (∂/∂t ≠ 0) References
Chapter 5: Mechanism of Energy Transport and Boundary Shear Stress Distribution in 3-D flows
5.1 Introduction
5.2 Mechanism of Energy Transport
5.3 Smooth prismatic channels
5.4 Roughness effect
5.5 Einstein and Meandering Rivers References
Chapter 6: Velocity, turbulent structures and friction factor in 3-D Flows
6.1 Mechanism of 2nd 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 References
Chapter 7: Time-averaged Navier-Stokes Equation and its event-averaged alternative for shear flows
7.1 Introduction
7.2 Re-visit Reynolds’ (1883) experiment and his (1895) interpretations
7.3 Advances in experimental and theoretical research
7.4 Event-based averaged N-S equation
7.5 Comparisons and predictions in cases of v>0, v< 0 and v = 0 References
Chapter 8: Boundary Layer Flow
8.1 Introduction
8.2 Previous research
8.3 Separation condition
8.4 Solution of Prandtl’s equation
8.5 Roughened boundary layer flows References
Chapter 9: Form drag and its co-existence with skin friction
9.1 The 2nd type boundary layer and Archimedes’ 2nd law
9.2 Flat plate normal to flow
9.3 Spheres & Cylinders
9.4 Other shapes
9.5 Mechanism of 3-D roughness References
Chapter 10: Loose boundary fluid mechanics
10.1 Incipient motion
10.2 Bedforms
10.3 Bedload
10.4 Total load References
Chapter 11: Two-Phase fluid mechanics
11.1 Governing equations of two-phase flows
11.2 Suspended load
11.3 Turbulence influenced by suspended particles
11.4 Interactions of mass and turbulence in unsteady flows References
Chapter 12: Density Currents and Stratified Flow
12.1 Stratified layer in a reservoir
12.2 Density current in a coastal reservoir
12.3 Wind and currents interaction
12.4 Response of water to wind shear stress
12.5 Steady State wind set-up in a closed basin References
1.1 Classification of fluid flows
1.2 Units and dimensional analysis.
1.3 Brief review of historical progress.
1.4 Progress toward solution of N-S equations
1.5 Wave theory References
Chapter 2: One-dimensional Internal Flow
2.1 Open Channel Flows (a ≈ 0)
2.2 Open-Channel Flows (a ≠ 0)
2.3 Pipe flows
2.4 Flow measurement References
Chapter 3: Internal, Steady and Uniform 2-D Flows
3.1 Turbulent structures in pipe and open channel flows
3.2 Dou’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 DR flow research
3.7 Separation Flow of Large Roughness Element References
Chapter 4: Steady and Non-uniform Flows or Unsteady Flows
4.1 Introduction
4.2 Unsteady 1-D flow (∂/∂t ≠ 0)
4.3 Steady accelerating 2-D flows (∂/∂t = 0, ∂u/∂x > 0)
4.4 Steady decelerating 2-D flows (∂/∂t = 0, ∂u/∂x≠ 0)
4.5 Unsteady 2-D flows (∂/∂t ≠ 0) References
Chapter 5: Mechanism of Energy Transport and Boundary Shear Stress Distribution in 3-D flows
5.1 Introduction
5.2 Mechanism of Energy Transport
5.3 Smooth prismatic channels
5.4 Roughness effect
5.5 Einstein and Meandering Rivers References
Chapter 6: Velocity, turbulent structures and friction factor in 3-D Flows
6.1 Mechanism of 2nd 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 References
Chapter 7: Time-averaged Navier-Stokes Equation and its event-averaged alternative for shear flows
7.1 Introduction
7.2 Re-visit Reynolds’ (1883) experiment and his (1895) interpretations
7.3 Advances in experimental and theoretical research
7.4 Event-based averaged N-S equation
7.5 Comparisons and predictions in cases of v>0, v< 0 and v = 0 References
Chapter 8: Boundary Layer Flow
8.1 Introduction
8.2 Previous research
8.3 Separation condition
8.4 Solution of Prandtl’s equation
8.5 Roughened boundary layer flows References
Chapter 9: Form drag and its co-existence with skin friction
9.1 The 2nd type boundary layer and Archimedes’ 2nd law
9.2 Flat plate normal to flow
9.3 Spheres & Cylinders
9.4 Other shapes
9.5 Mechanism of 3-D roughness References
Chapter 10: Loose boundary fluid mechanics
10.1 Incipient motion
10.2 Bedforms
10.3 Bedload
10.4 Total load References
Chapter 11: Two-Phase fluid mechanics
11.1 Governing equations of two-phase flows
11.2 Suspended load
11.3 Turbulence influenced by suspended particles
11.4 Interactions of mass and turbulence in unsteady flows References
Chapter 12: Density Currents and Stratified Flow
12.1 Stratified layer in a reservoir
12.2 Density current in a coastal reservoir
12.3 Wind and currents interaction
12.4 Response of water to wind shear stress
12.5 Steady State wind set-up in a closed basin References
- Edition: 1
- Latest edition
- Published: June 11, 2025
- Language: English
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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