Advanced Numerical Modelling of Wave Structure Interactions - Advanced Numerical Modelling of Wave Structure Interactions -

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