In this paper we present two enhanced variants of the smoothed particle hydrodynamics (SPH) method for the numerical simulation of free surface flows of viscous fluids. Improvements are achieved by deriving a new set of general discrete SPH-like equations under an energy-based framework and applying a corrected (high-order) or coupled particle approximation scheme for function derivatives. By d...

Electron-rich polyisocyano derivatives Fe(2)(S(2)C(n)H(2n)(CO)(6-x)(CNMe)(x) (x approximately 4) undergo oxidatively induced (FeCp(2)(+)) reaction with additional CNMe to give [Fe(2)(SR)(2)(CNMe)(7)](PF(6))(2), a new class of iron thiolates. Crystallographic characterization established that the 34 e(-) dinuclear core resembles the oxidized (H(2)-binding) form of the active sites of the Fe-only...

on SPH to simulate three-dimensional invasion of nonwetting and wetting fluids in fracture apertures with Smoothed particle hydrodynamics (SPH) models were used to complex geometries. Such complex processes are very simulate unsaturated flow in fractures with complex geometries. The SPH is a fully Lagrangian particle-based method that allows the dydifficult to model with traditional grid-based ...

Reported here is an organic-cation templated 4-connected anionic boron imidazolate framework [N(CH(3))(4)][Cd(SH)(2)B(im)(4)] (ABIF-1, im = imidazolyl), which is synthesized from the reaction of the supertetrahedral Cd(10)S(4)(SPh)(12) cluster with [N(CH(3))(4)]Cl and NaB(im)(4). The work represents an important step in the expansion of boron imidazolate frameworks from neutral BIFs to anionic ...

A new use of smoothed particle hydrodynamics (SPH) in fluid simulation is presented: an algorithm solving the Helmholtz-Hodge decomposition using SPH in order to find the null divergence velocity field for incompressible flow simulation. Accordingly, a new version of the Laplacian for a vector field is proposed here. In order to improve the accuracy of the SPH technique, the paper also presents...

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...