The numerical modeling of a 2D flow around a horizontal cylinder near a rigid bed with the gap ratios G/D = 0, 0.2, 0.3 at Reynolds numbers 840, 4500, 9000, and 9500 is investigated by using weakly compressible smoothed particle hydrodynamics. The velocity field and the separation angles from the present simulations are compared with those obtained from the experimental measurements and are in ...

The Weakly-Compressible Smoothed Particle Hydrodynamics (WCSPH) method is a Lagrangian that typically used for the simulation of incompressible fluids. While developing an SPH-based scheme or solver, researchers often verify their code with exact solutions, solutions from other numerical techniques, experimental data. This requires significant amount computational effort and does not test full ...

An application of the weakly compressible Smoothed Particle Hydrodynamics (WSPH) numerical method is presented here for case two-dimensional flow in a long channel with partially open sluice gate. The results are compared an analytical solution provided by shallow water equations (SWE) and available experimental data. Of particular interest this to gate high ratio length depth, which tends ampl...

In this paper we propose a dual-time stepping scheme for the Smoothed Particle Hydrodynamics (SPH) method. Dual-time has been used in context of other numerical methods simulation incompressible fluid flows. Here provide that combines entropically damped artificial compressibility (EDAC) along with stepping. The method is accurate, robust, and demonstrates up to seven times better performance t...

Smoothed Particle Hydrodynamics (SPH) is a particle method to simulate compressible uids. First we present a brief introduction to SPH, where we focus on an approach to treat the physical viscosity. Then we describe in detail the basic principles of our parallel implementation of the SPH method. The eeciency of the code on Cray T3E and IBM SP2 is discussed. In the last part we present a short i...

The entry of projectiles into water has been interest to many scientists and engineers, being crucial a wide range engineering applications. problem is nonlinear unsteady phenomenon involving complicated multi-phase flow problems fluid–solid interaction. Many have studying in various conditions through experimental methods numerical methods. In this paper, three-dimensional simulations the are ...