A set of interpolating functions of the type f(v) = { sin [ π 2 v ] / ( π 2v )}n is analyzed in the context of the smoothed-particle hydrodynamics (SPH) technique. The behaviour of these kernels for several values of the parameter n has been studied either analytically as well as numerically in connection with several tests carried out in two dimensions. The main advantage of this kernel relies...

Abstract We comment on a recent article [Comput. Mech. 2020, 65, 487–502] about surface-tension modeling for free-surface flows with Smoothed Particle Hydrodynamics. The authors motivate part of their work related to novel principal curvature approximation by the wrong claim that classical formulation in SPH overestimates 3D factor 2. In this note we confirm correctness and point out misconcept...

This work verifies that the W foil could be successfully welded on Cu through conventional explosive welding, without any cracks. The microstructure was observed through scanning electron microscopy (SEM), optical microscopy and energy-dispersive X-ray spectrometry (EDS). The W/Cu interface exhibited a wavy morphology, and no intermetallic or transition layer was observed. The wavy interface fo...

Breaking waves have ability to transport large quantities of sediment and significant impact on coastal structures morphology. Hence, modeling of wave breaking is an important subject in coastal and marine engineering. In this research, the periodic wave breaking process on a plane slope is studied experimentally and numerically. Laboratory experiments were conducted to record water surface ele...

Meshfree particle method, which is always regarded as a pure Lagrangian approach, is easily represented complicated domain topologies, moving boundaries, and multiphase media. Solving acoustic problems with the mesfree particle method forms a branch of the acoustic wave modeling field, namely, particle-based computational acoustics (PCA). The aim of this paper is to improve the accuracy of usin...

In this paper, we present the results of smoothed particle hydrodynamic (SPH) simulations of collisions between pre-main sequence stars and a variety of other kinds of stars. Simulations over a range of impact parameters and velocities were performed. We find that pre-main sequence stars tend to “wrap themselves” around their impactor. We discuss the probable evolutionary state of products of c...

This paper describes a method of procedural generation of meandering rivers inspired by erosion, which can enhance visual realism of virtual terrains. Terrain is represented using an adaptively subdivided triangle mesh with additional information (e.g. amount of soft deposit) stored in vertices. Water is simulated using Smoothed Particle Hydrodynamics (SPH), modified in order to model erosion o...

Shoaling of solitary waves on a uniform plane beach connected to a constant-depth wave tank is investigated numerically using the smoothed particle hydrodynamics (SPH) method. The characteristics of water surface elevations have been analyzed for wave shoaling. To test the validity of the numerical model, the relative wave heights, the time histories of the free surface profiles are measured at...

We have performed three-dimensional numerical simulations of accretion discs in a close binary system using the Smoothed Particle Hydrodynamics (SPH) method. Our results show that, contrary to previous claims, 3D discs do exist even when the specific heat ratio of the gas is as large as γ = 1.2. Although the disc is clearly more spread in the z-direction in this case than it is for the quasi-is...

The Smoothed Particle Hydrodynamics (SPH) method is a Lagrangian approach that has been widely used to eliminate numerical dispersion for solving advection-dispersion equation (ADE) of groundwater solute transport under advection-dominated situations. It found accuracy SPH results severely deteriorated, when particles are irregularly distributed in model domain with heterogeneous hydraulic cond...