‎the water wave generation by wave paddle and a freely falling rigid body are examined by using an incompressible smoothed particle hydrodynamics (isph)‎. ‎in the current isph method‎, ‎the pressure was evaluated by solving pressure poisson equation using a semi-implicit algorithm based on the projection scheme and the source term of pressure poisson equation contains both of divergence free ve...

X iv :a st ro -p h/ 05 07 47 2v 1 2 0 Ju l 2 00 5 “I went on to test the program in every way I could devise. I strained it to expose its weaknesses. I ran it for high-mass stars and low-mass stars, for stars born exceedingly hot and those born relatively cold. I ran it assuming the superfluid currents beneath the crust to be absent – not because I wanted to know the answer, but because I had d...

This paper presents an overview and introduction to Smoothed Particle Hydrodynamics and Magnetohydrodynamics in theory and in practice. Firstly, we give a basic grounding in the fundamentals of SPH, showing how the equations of motion and energy can be self-consistently derived from the density estimate. We then show how to interpret these equations using the basic SPH interpolation formulae an...

A simplified modelling technique for viscoelastic fluids is proposed from the perspective of Discrete Multiphysics. This approach, based on concept linear additive composition energy potentials, aims to integrate Smooth Particle Hydrodynamics (SPH) with an equivalent elastic potential tailored fluid flow simulations. The model was implemented using a particle-based software, explored and thorou...

Coastal protections, such as dykes, seawalls, breakwaters and natural beaches can often be considered porous structures. The accurate prediction of wave motion around structures is necessary for the effective design durable coastal protections. Smoothed particle hydrodynamics (SPH) a meshless particle-based method suitable simulations violent free-surface flows their interaction with In this pa...

We introduce a new computational method for embedding Lagrangian sink particles into an Eulerian calculation. Simulations of gravitational collapse or accretion generally produce regions whose density greatly exceeds the mean density in the simulation. These dense regions require extremely small time steps to maintain numerical stability. Smoothed particle hydrodynamics (SPH) codes approach thi...

Computer graphics and virtual reality technologies have enables us to develop several medical systems such as preoperative planning, intra-operative navigation and surgical simulation systems. The training for each part of human bodies is available, which parts are head, eye, liver, bone and so on; however, real-time simulation of blood vessel deformation or bleeding is not available with the p...