Numerical Investigation of Anti-Diffusion Source Term for Free-Surface Wave Flow

Numerical investigation of free surface flood wave and solitary wave using incompressible SPH method

Simulation of free surface flow and sudden wave profile are recognized as the most challenging problem in computational hydraulics. Several Eulerian/Lagrangian approaches and models can be implemented for simulating such phenomena in which the smoothed particle hydrodynamics method (SPH) is categorized as a proper candidate. The incompressible SPH (ISPH) method hires a precise incompressible hy...

A Numerical Solution to a Free Surface Wave Problem

The aim of this paper is to present a numerical method for the calculation of water waves in a semi-infinite wave tank. The motion of the fluid, which is assumed to be inviscid, is caused by the motion of part of the boundary of the basin. The correct numerical simulation of the interaction between the side walls and the fluid is an intrinsic feature of the problem. In the literature a series o...

Numerical Solution of Steady Free-Surface Navier-Stokes Flow

The usual time integration approach for solving steady viscous free surface flow problems has several drawbacks. We propose instead an efficient iterative method, which relies on a different but equivalent formulation of the free surface flow problem, involving a so-called quasi free-surface condition. Furthermore, we present a method for analyzing the properties of wave solutions of the discre...

Direct Numerical Simulation of Free-surface and Interfacial Flow

The numerical simulation of flows with interfaces and free-surface flows is a vast topic, with applications to domains as varied as environment, geophysics, engineering, and fundamental physics. In engineering, as well as in other disciplines, the study of liquid-gas interfaces is important in combustion problems with liquid and gas reagents. The formation of droplet clouds or sprays that subse...

Numerical Flood Simulation by Depth Averaged Free Surface Flow Models