Fronts propagating with curvature-dependent speed: algorithms based on Hamilton-Jacobi formulations
Journal of Computational Physics
Numerical computation of internal & external flows: fundamentals of numerical discretization
Numerical computation of internal & external flows: fundamentals of numerical discretization
A front-tracking method for viscous, incompressible, multi-fluid flows
Journal of Computational Physics
A continuum method for modeling surface tension
Journal of Computational Physics
Simulating free surface flows with SPH
Journal of Computational Physics
Modelling merging and fragmentation in multiphase flows with SURFER
Journal of Computational Physics
A level set approach for computing solutions to incompressible two-phase flow
Journal of Computational Physics
Journal of Computational Physics
Journal of Computational Physics
Reconstructing volume tracking
Journal of Computational Physics
Journal of Computational Physics
An adaptive level set approach for incompressible two-phase flows
Journal of Computational Physics
On simulation of turbulent nonlinear free-surface flows
Journal of Computational Physics
A method for capturing sharp fluid interfaces on arbitrary meshes
Journal of Computational Physics
Volume-of-fluid interface tracking with smoothed surface stress methods for three-dimensional flows
Journal of Computational Physics
On the use of shock-capturing schemes for large-eddy simulation
Journal of Computational Physics
Computation of solid-liquid phase fronts in the sharp interface limit on fixed grids
Journal of Computational Physics
A computational model for suspended large rigid bodies in 3D unsteady viscous flows
Journal of Computational Physics
Journal of Computational Physics
A one-cell local multigrid method for solving unsteady incompressible multiphase flows
Journal of Computational Physics
Near-wall LES closure based on one-dimensional turbulence modeling
Journal of Computational Physics
A geometrical area-preserving volume-of-fluid advection method
Journal of Computational Physics
Interactions of breaking waves with a current over cut cells
Journal of Computational Physics
Hi-index | 31.45 |
This paper describes a solver on the simulation of overtopping of water waves over sloping and vertical structures in a numerical wave tank (NWT). It involves a time-implicit cell-staggered approximately factored VOF finite volume (FV) approach for solution of unsteady incompressible Navier Stokes (NS) equations with a free surface on non-uniform Cartesian cut-cell grids. The Godunov-type high-order upwind schemes are introduced for discretization of the convective fluxes, while the coupling of the pressure with the velocity is realized by a projection method. The effects of turbulence are incorporated with a subgrid-scale (SGS) model. A novel VOF solver is proposed for the capture of a free surface undergoing severe topological deformation related with breaking waves. Only an approximation for the free-surface boundary conditions neglects the viscous stress but surface tension is modelled as a body force. A blend of second- and fourth-order artificial damping terms is designed for enhancement of the numerical stability. Additionally, the cut-cell techniques are utilized for handling an arbitrary geometry, and an absorbing-generating boundary condition for a wave generator is applied. The calculated results are represented in terms of the surface elevation versus time at certain locations and the velocity fields created by regular and irregular waves. Furthermore, the convergence behavior, the grid refinement effects, the study of different SGS models, the surface tension and Reynolds number effects and the role of a turbulence model under breaking waves are discussed, including a comparison with measurements available.