Results 31 to 40 of about 15,573 (189)

Two-dimensional free-surface flow under gravity: A new benchmark case for SPH method

open access: yesAIP Advances, 2018
Currently there are few free-surface benchmark cases with analytical results for the Smoothed Particle Hydrodynamics (SPH) simulation. In the present contribution we introduce a two-dimensional free-surface flow under gravity, and obtain an analytical ...
J. Z. Wu, L. Fang
doaj   +1 more source

On different calculation formulas of the pressure term in bi-phase SPH simulations

open access: yesAIP Advances, 2018
The smoothed particle hydrodynamics (SPH) method is usually expected to be an efficient numerical tool for calculating the multiphase phenomena in compressors. However, numerical instability arises around the interfaces due to the pressure inconsistency.
Shuai Chen, Wei Niu
doaj   +1 more source

Smoothed Particle Hydrodynamics for Relativistic Heavy Ion Collisions

open access: yes, 2000
The method of smoothed particle hydrodynamics (SPH) is developped appropriately for the study of relativistic heavy ion collision processes. In order to describe the flow of a high energy but low baryon number density fluid, the entropy is taken as the ...
C E Aguiar   +21 more
core   +1 more source

Derivation of SPH equations in a moving referential coordinate system [PDF]

open access: yes, 2009
The conventional SPH method uses kernel interpolation to derive the spatial semi-discretisation of the governing equations. These equations, derived using a straight application of the kernel interpolation method, are not used in practice. Instead the
Campbell, James C.   +3 more
core   +1 more source

Pattern recognition issues on anisotropic smoothed particle hydrodynamics

open access: yes, 2013
This is a preliminary theoretical discussion on the computational requirements of the state of the art smoothed particle hydrodynamics (SPH) from the optics of pattern recognition and artificial intelligence.
Marinho, Eraldo Pereira
core   +1 more source

Study on SPH Viscosity Term Formulations [PDF]

open access: yes, 2018
For viscosity-dominated flows, the viscous effect plays a much more important role. Since the viscosity term in SPH-governing (Smoothed Particle Hydrodynamics) equations involves the discretization of a second-order derivative, its treatment could be ...
Ma, Q., Shao, S., Zheng, X.
core   +3 more sources

Macroscopic pedestrian flow simulation using Smoothed Particle Hydrodynamics (SPH)

open access: yesTransportation Research Part C: Emerging Technologies, 2020
Macroscopic pedestrian models are theoretically simpler than microscopic models, and they can potentially be solved faster while producing reasonable predictions of crowd dynamics. Therefore, they can be very useful for applications such as large-scale simulation, real-time state estimation and crowd management. However, the numerical methods presently
Yuan, Y. (author)   +5 more
openaire   +3 more sources

Smoothed particle hydrodynamics simulation of underwater explosions with dynamic particle refinement

open access: yesAIP Advances, 2020
The underwater explosion is a very complex multiphase phenomenon that poses a threat to the safety of ocean structures. Numerical simulation is of great significance in understanding the underlying mechanisms of hydrodynamics and structural damages due ...
Tieshuan Zhuang, Xiangwei Dong
doaj   +1 more source

Simulation of solidification microstructure evolution of 316L stainless steel fabricated by selective laser melting using a coupled model of smooth particle hydrodynamics and cellular automata

open access: yesJournal of Materials Research and Technology, 2023
Selective Laser Melting (SLM) is an efficient and advanced manufacturing technology that utilizes lasers to melt and solidify metal or alloy powders, layer by layer, to form the desired object shape.
Ju Ma   +8 more
doaj   +1 more source

A new approach of high speed cutting modelling: SPH method [PDF]

open access: yes, 2006
The purpose of this study is to introduce a new approach of high speed cutting numerical modelling. A lagrangian Smoothed Particle Hydrodynamics (SPH) based model is carried out using the Ls-Dyna software.
Espinosa, Christine   +3 more
core   +2 more sources

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