Advanced Numerical Modelling of Wave Structure Interaction

Cover
Title Page
Copyright Page
Foreword
Table of Contents
Introduction
Chapter 1 Wave Generation and Absorption Techniques
	1 Introduction
	2 Review of wave generation and absorption methods
		2.1 Static boundary wave generation and absorption boundary conditions
		2.2 Relaxation zones
		2.3 Internal wave makers
		2.4 Moving wavemakers with active absorption
	3 Discussion
	References
Chapter 2 Wave Propagation Models for Numerical Wave Tanks
	1 Introduction
	2 Historical development
		2.1 BEM models
		2.2 FEM models
		2.3 Spectral models
		2.4 Fully Lagrangian models
	3 Lagrangian numerical wave model
		3.1 Mathematical formulation
		3.2 Numerical scheme
		3.3 Numerical dispersion relation and dispersion correction
		3.4 Numerical treatment of breaking
		3.5 Numerical efficiency
		3.6 Model validation
	4 Model application to the evolution of extreme wave groups
	5 Model application to waves on sheared currents
	6 Concluding remarks
	References
Chapter 3 Wave Breaking and Air Entrainment
	1 Introduction
	2 Physics of breaking
		2.1 Wave breaker types
		2.2 Flow structure
	3 Numerical model
	4 Wave breaking of unstable sinusoidal wave
		4.1 Initial configuration
		4.2 Splash-up and large vortical structures
	5 A new type of vortical structures under breaking waves
	6 Discussion and future work
	References
Chapter 4 Air Compressibility and Aeration Effects in Coastal Flows
	1 Introduction
	2 Flow model for dispersed water waves
		2.1 Mathematical model
	3 Numerical Method
		3.1 Treatment of the advection equation
		3.2 Spatial discretisation
		3.3 The HLLC Riemann solver
		3.4 Temporal discretisation
	4 Results
		4.1 1D problems
		4.2 Free drop of a water column in a closed tank
		4.3 Underwater explosion near a planar rigid wall
		4.4 Water entry of a rigid plate
		4.5 Plunging wave impact at a vertical wall
	5 Conclusions
	References
Chapter 5 Violent Wave Impacts and Loadings using the δ-SPH Method
	1 Introduction
	2 Governing equations
	3 The δ-SPH scheme
	4 Modelling solid bodies
		4.1 The ghost-fluid method
		4.2 Evaluation of Forces and Torques through the ghost-fluid method
		4.3 Algorithm for fluid-body coupling
	5 Energy balance
	6 Applications
		6.1 Prediction of water impacts
		6.2 Extreme loads on a Wave Energy Converter (WEC)
	7 Conclusions
	References
Chapter 6 Wave and Structure Interaction Porous Coastal Structures
	1 Introduction
	2 Literature review
	3 Mathematical formulation
		3.1 Definitions
		3.2 RANS equations
		3.3 Volume-Averaged RANS equations
		3.4 Closure
		3.5 Turbulence modelling
		3.6 Discussion
	4 Numerical model
	5 Applications: Solitary wave impacting into a rubble mound breakwater
		5.1 Numerical setup
		5.2 Numerical results
		5.3 Concluding remarks
	6 Applications: Wave and sediment grain interaction by a nonbreaking solitary wave on a steep slope
		6.1 Introduction to DEM
		6.2 Numerical setup
		6.3 Numerical results
		6.4 Concluding remarks
	7 Final remarks
	References
Chapter 7 CFD Modelling of Scour in Flows with Waves and Currents
	1 Introduction
	2 Types of sediment transport models in CFD
	3 The scourFOAM model
		3.1 Governing equations
	4 Numerical solution technique
		4.1 The solver
		4.2 Boundary and initial conditions
		4.3 Solution procedure
	5 Model applications
		5.1 2D scour application
		5.2 3D scour around a complex foundation
	6 Conclusions
	References
Chapter 8 A Coupling Strategy for Modelling Dynamics of Moored Floating Structures
	1 Introduction
	2 Uncoupled numerical models
		2.1 Fluid dynamics
		2.2 Solid dynamics
	3 An overview of fluid-structure coupling schemes
		3.1 Monolithic schemes
		3.2 Partitioned schemes
		3.3 Coupling instabilities
	4 Coupling strategy
		4.1 Fluid-structure coupling
		4.2 Fluid-mooring coupling
		4.3 Mooring-structure coupling
	5 Case studies
		5.1 Validation of FSI for floating bodies
		5.2 Validation of mooring model
		5.3 Moored floating bodies: the OC4-DeepCwind validation case
	6 Conclusions
	Appendices
		A On limitations and way forward
		B On software development
	References
Future Prospects
	1 The lattice Boltzmann method
	2 Arbitrary and hybrid Lagrangian-Eulerian models
	3 Direct pressure and pressure-marching methods
	4 Machine learning
	5 Coupled models
	References
Index