This paper describes an energy-preserving and globally time-reversible code for weakly compressible smoothed particle hydrodynamics (SPH). We do not add any additional dynamics to the Monaghan's original SPH scheme at level of ordinary differential equation, but we show how discretize equations by using a corrected expression density invoking symplectic integrator. Moreover, achieve global-in-t...

Article history: Received 1 August 2013 Received in revised form 2 December 2013 Accepted 5 December 2013 Available online 12 December 2013

We explore the possibility of controlling the pattern formation in a purely diffusive binary mixture described by a van der Waals equation of state in non-isothermal situations. Simulations are conducted with a previously formulated thermodynamically consistent smoothed particle hydrodynamics model for a phase separating mixture. We focus on the effect of the overall concentration of species in...

We present a new method to create realistic paint simulation, utilizing the characteristics of paint, such as fluidity, diffusion, and absorption. We treat the painting elements separately as pigment, binder, solvent, and paper. Adopting smoothed-particle hydrodynamics (SPH) including a consideration of viscoelastic movement, we simulate the fluid motion of the paint and the solvent. To handle ...

By modeling mass transfer phenomena, we simulate solids and liquids dissolving or changing to other substances. We also deal with the very small-scale phenomena that occur when a fluid spreads out at the interface of another fluid. We model the pressure at the interfaces between fluids with Darcy’s Law and represent the viscous fingering phenomenon in which a fluid interface spreads out with a ...

Smoothed Particle Hydrodynamics (SPH) is a powerful technique for the animation of natural phenomena. While early SPH approaches in Computer Graphics have mainly been concerned with liquids or gases, recent research also focuses on the dynamics of deformable solids using SPH. In this paper, we present a novel corotational SPH formulation for deformable solids. The rigid body modes are extracted...

We present an application of SPH to saturated soil problems. Herein, the standard SPH formulation was improved to model saturated soil. It is shown that the proposed formulation could yield several advantages such as: it takes into account the pore-water pressure in an accurate manner, it automatically satisfies the dynamics boundary conditions between submerged soil and water, and it reduced t...

Tree-SPH, numerical simulations of disk galaxy formation in a cosmological context are presented. For the " passive " variant of such simulations, i.e. simulations not including the effects of stellar feedback processes, it is found that the resulting disk " galaxies " are far too small and specific angular momentum deficient, by about a factor of 8 in size and about a factor of 20 in specific ...