We investigate the evolution of the galaxy star formation rate function (SFRF) and cosmic star formation rate density (CSFRD) of z ∼ 1–4 galaxies, using cosmological smoothed particle hydrodynamic (SPH) simulations and a compilation of ultraviolet (UV), infrared (IR) and Hα observations. These tracers represent different populations of galaxies with the IR light being a probe of objects with hi...

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...

A numerical method based on smoothed particle hydrodynamics with adaptive spatial resolution (SPH-ASR) was developed for simulating free surface flows. This can reduce the computational demands while maintaining accuracy. In this method, changes adaptively according to distance by splitting and merging. The particles are split refinement when they near surface, merged coarsening away from surfa...

The penetration of projectiles into targets has a broad background in engineering. In this work, numerical simulations the projectile-target problem are conducted using Finite Element Method (FEM), Smoothed Particle Hydrodynamics (SPH) and Element–Smoothed Adaptive Coupling (FE-SPH ACM) based on LS-DYNA software package. First, experiments aluminum ceramic simulated. experimental simulation res...

Accurate characterization of the response coastal structures when subjected to tsunami-like waves is important for structural engineering assessment and design. The weakly-compressive Smoothed Particle Hydrodynamic (SPH) model can theoretically investigate such phenomena in both horizontal vertical directions. Yet, convergence solutions sensitive physical numerical parameters used modeling. In ...

In this paper we introduce a fast and consistent Smoothed Particle Hydrodynamics (SPH) technique which is suitable for convection-diffusion simulations of incompressible fluids. We apply our temporal blending technique to reduce the number of particles in the simulation while smoothly changing quantity fields. Our approach greatly reduces the error introduced in the pressure term when changing ...

This paper concerns the study of coupled effects electrohydrodynamic (EHD) and thermocapillary (TC) on dynamic behaviour a single liquid droplet. An incompressible Smoothed Particle Hydrodynamic (ISPH) multiphase model is used to simulate EHD-TC driven flows. The complex hydrodynamic interactions are modeled using continuum surface force (CSF) method, in which gradient interfacial tension Maran...

Abstract The hydrodynamics field continues to be interested in one of the classic free surface flow problems, propagation water waves. In this paper, long-distance wave is investigated using smoothed particle (SPH). One mesh-free, Lagrangian approaches SPH. study’s goal derive a set parameters appropriate for large tank. A 24.6 m gauge was placed front piston wavemaker, which used replicate reg...

By comparing a collisionless cosmological N-body simulation (DM) to a smoothed particle hydrodynamics simulation (SPH) with the same initial conditions, we investigate the correspondence between the dark matter subhalos produced by collisionless dynamics and the galaxies produced by dissipative gas dynamics in a dark matter background. When galaxies in the SPH simulation fall into larger groups...

The increasing flash flood hazards in major cities like Kuala Lumpur have caused tremendous damages to the society and this requires more essential countermeasures to be implemented. With the advancement in 3D Computer Graphics and fluid simulation technologies, movie experts can now produce realistic visual effects for fluid objects such as water. This paper describes a study made to model and...