نتایج جستجو برای: Smoothed particle hydrodynamic method

تعداد نتایج: 1793533  

1999
Stefan Kunze Erik Schnetter

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...

Amin Mahmoudi, Habib Hakimzadeh, Mohammad Javad Ketabdari,

In this paper a space-averaged Navier–Stokes approach was deployed to simulate the wave propagation over coastal structures. The developed model is based on the smoothed particle hydrodynamic (SPH) method which is a pure Lagrangian approach and can handle large deformations of the free surface with high accuracy. In this study, the large eddy simulation (LES) turbulent model was coupled with th...

2013
DaMing Yuan Hao Fu JianJie Yu

In this paper, we make a brief review of smoothed particle hydrodynamic method and develop a new infinity differentiable weight function in the three-dimensional space. The function satisfies the demanded properties. Furthermore, we investigate the consistency and analyze the estimation errors of the SPH interpolation with the weight function.

Journal: :Monthly Notices of the Royal Astronomical Society 2011

Breaking waves have ability to transport large quantities of sediment and significant impact on coastal structures morphology. Hence, modeling of wave breaking is an important subject in coastal and marine engineering. In this research, the periodic wave breaking process on a plane slope is studied experimentally and numerically. Laboratory experiments were conducted to record water surface ele...

Journal: :international journal of maritime technology 0
amin mahmoudi faculty of civil engineering, persian gulf university, bushehr, iran habib hakimzadeh faculty of civil engineering, sahand university of technology, tabriz mohammad javad ketabdari faculty of marine technology, amirkabir university of technology, tehran amir etemadshahidi griffith school of engineering, griffith university, queensland,4222, australia nick cartwright griffith school of engineering, griffith university, queensland,4222, australia hassan abyn assistant professor of naval architecture, persian gulf university, bushehr

breaking waves have ability to transport large quantities of sediment and significant impact on coastal structures morphology. hence, modeling of wave breaking is an important subject in coastal and marine engineering. in this research, the periodic wave breaking process on a plane slope is studied experimentally and numerically. laboratory experiments were conducted to record water surface ele...

2012
Buntara Sthenly Gan

A simple and easy algorithm is presented for a fast calculation of kernel functions which required in fluid simulations using the Smoothed Particle Hydrodynamic (SPH) method. Present proposed algorithm improves the Linked-list algorithm and adopts the Pair-Wise Interaction technique, which are widely used for evaluating kernel functions in fluid simulations using the SPH method. The algorithm i...

2001
James C. Lombardi Frederic A. Rasio

We review recent 3D hydrodynamic calculations of stellar collisions using the Smoothed Particle Hydrodynamics (SPH) method, and we discuss the implications of the results for the formation and evolution of blue stragglers in globular clusters. We also discuss the construction of simple analytic models for merger remnants, approximating the mass loss, shock heating, mixing, and angular momentum ...

2017
Yong Ou Zhang Stefan G. Llewellyn Tao Zhang Yun Li

Although Eulerian approaches are standard in computational acoustics, they are less effective for certain classes of problems like bubble acoustics and combustion noise. A different approach for solving acoustic problems is to compute with individual particles following particle motion. In this paper, a Lagrangian approach to model sound propagation in moving fluid is presented and implemented ...

2014
Xing Zheng Qing-Wei Ma Wen-yang Duan

With the improvement of Smoothed Particle Hydrodynamic (SPH), it has become one of most vigorous methods for breaking wave simulation. Recently we have developed an improved SPH method for simulating violent flow and wave impact to different angle slopes. The main features of the new method include the incompressible SPH method based the incompressible Poisson equation, and it also gives a new ...

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