نتایج جستجو برای: weakly compressible smoothed particle hydrodynamics

تعداد نتایج: 249902  

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...

Journal: :AIP Advances 2022

In this study, the transient process of solid–liquid phase change is modeled and simulated by multiphase smoothed particle hydrodynamics (SPH) method. First, to simulate interfacial behaviors melt liquids, SPH model established for immiscible viscous fluids with a large density ratio, where environmental liquid surrounding solid considered, surface tension can be accurately continuum force Base...

Journal: :Journal of physics 2022

Abstract The Smoothed Particle Hydrodynamics (SPH) method in the so-called weakly compressible variant (which mimics incompressibility conditions) is studied context of its resolving power vortical flows. It well known that conservative formulations SPH have serious problems to provide reasonably accurate solutions even simple flow cases. This deficiency additionally emphasized by fact are not ...

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...

Journal: :Journal of Computational Physics 2023

This paper proposes the first free-stream boundary condition in a purely Lagrangian framework for weakly-compressible smoothed particle hydrodynamics (WCSPH). The is implemented based on several numerical techniques, including spatio-temporal method and an ensuring technique surface identification, far-field corrections of density velocity near boundary, improved in- outlet conditions which gua...

Journal: :Physical review 2021

Methods such as weakly-compressible smoothed particle hydrodynamics are frequently used in fluid dynamics, but they known to struggle with the direct numerical simulation of vortices and turbulence at finite resolution. By making a connection nonequilibrium molecular authors identify tensor quantity that may help understand remedy these problems.

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...

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