Context. The smoothed particle hydrodynamics (SPH) technique is a well-known numerical method that has been applied to simulate the evolution of a wide variety of systems. Modern astrophysical applications of the method rely on the Lagrangian formulation of fluid Euler equations, which is fully conservative. A different scheme, based on a matrix approach to the SPH equations is currently being ...

This paper presents results obtained by numerical study of sloshing effects in medium sized rectangular tanks subjected to a long-period seismic excitation. The Smoothed Particle Hydrodynamics (SPH) method is used, and the wave displacement and pressure are analysed. The intensity of sloshing effects depends not only on the peak ground acceleration but also on the dominant frequency of ground m...

Abstract. The chemical and photometric evolution of star forming disk galaxies is investigated. Numerical simulations of the complex gasdynamical flows are based on our own coding of the Chemo Dynamical Smoothed Particle Hydrodynamical (CD SPH) approach, which incorporates the effects of star formation. As a first application, the model is used to describe the chemical and photometric evolution...

Abstract Engineered cementitious composites (ECC), also known as bendable concrete, were developed based on engineering the interactions between fibers and matrix. The orientation of fibers, in this regard, is one major factors influencing ductile behavior material. In study, fiber distributions ECC beams influenced by different casting techniques are evaluated via numerical modeling process. T...

a r t i c l e i n f o a b s t r a c t We present a methodology to concurrently couple particle-based methods via a domain decomposition (DD) technique for simulating viscous flows. In particular, we select two resolutions of the smoothed particle hydrodynamics (SPH) method as demonstration. Within the DD framework, a simulation domain is decomposed into two (or more) overlapping sub-domains, ea...

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...

This paper presents a hybrid Smoothed Particle Hydrodynamics (SPH) – Finite Element Method (FEM) solver for metal cutting simulations on Graphics Processing Units (GPU). For the first time in chip formation simulation, heat transfer between an SPH model of workpiece, and transient FEM temperature tool, is established. validation, performance modeled thermal contact two numerical domains compare...

In this paper we show how the Smoothed Particle Hydrodynamics (SPH) equations for ideal Magnetohydrodynamics (MHD) can be written in conservation form with the positivity of the dissipation guaranteed. We call the resulting algorithm Smoothed Particle Magnetohydrodynamics (SPMHD). The equations appear to be accurate, robust and easy to apply and do not suffer from the instabilities known to exi...

Hydrodynamic cosmological simulations at present usually employ either the Lagrangian smoothed particle hydrodynamics (SPH) technique, or Eulerian hydrodynamics on a Cartesian mesh with (optional) adaptive mesh refinement (AMR). Both of these methods have disadvantages that negatively impact their accuracy in certain situations, for example the suppression of fluid instabilities in the case of ...

We present a series of 2-dimensional hydrodynamic simulations of massive disks around protostars. We simulate the same physical problem using both a ‘Piecewise Parabolic Method’ (PPM) code and a ‘Smoothed Particle Hydrodynamic’ (SPH) code, and analyze their differences. The disks studied here range in mass from 0.05M∗ to 1.0M∗ and in initial minimum Toomre Q value from 1.1 to 3.0. We adopt simp...