Modeling Water Waves with Smoothed Particle Hydrodynamics

2011 ◽  
Author(s):  
Robert A. Dalrymple
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Water Waves ◽  
Particle Hydrodynamics ◽  
Smoothed Particle

scholarly journals Experimental Validation of Smoothed Particle Hydrodynamics on Generation and Propagation of Water Waves

2019 ◽  
Vol 7 (1) ◽  
pp. 17 ◽  
Author(s):  
Andi Trimulyono ◽  
Hirotada Hashimoto
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Water Waves ◽  
Graphics Processing Units ◽  
Two Dimensional ◽  
Nonlinear Water Waves ◽  
Long Distance ◽  
Large Wave ◽  
Wave Basin ◽  
Particle Hydrodynamics ◽  
Smoothed Particle

This paper is aimed to validate smoothed particle hydrodynamics (SPH) on the generation and propagation of water waves. It is a classical problem in marine engineering but a still important problem because there is a strong demand to generate intended nonlinear water waves and to predict complicated interactions between nonlinear water waves and fixed/floating bodies, which is indispensable for further ocean utilization and development. A dedicated experiment was conducted in a large wave basin of Kobe University equipped with a piston-type wavemaker, at three water depths using several amplitudes and periods of piston motion for the validation of SPH mainly on the long-distance propagation of water waves. An SPH-based two-dimensional numerical wave tank (NWT) is used for numerical simulation and is accelerated by a graphics processing units (GPU), assuming future applications to realistic engineering problems. In addition, comparison of large-deformation of shallow water waves, when passing over a fixed box-shape obstacle, is also investigated to discuss the applicability to wave-structure interaction problems. Finally, an SPH-based three-dimensional NWT is also validated by comparing with an experiment and two-dimensional simulation. Through these validation studies, detailed discussion on the accuracy of SPH simulation of water waves is made as well as providing a recommended set of SPH parameters.

SMOOTHED PARTICLE HYDRODYNAMICS FOR WATER WAVES

2010 ◽  
pp. 465-495 ◽  
Author(s):  
Robert A. Dalrymple ◽  
Moncho Gómez-Gesteira ◽  
Benedict D. Rogers ◽  
Andrea Panizzo ◽  
Shan Zou ◽  
...  
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Water Waves ◽  
Particle Hydrodynamics ◽  
Smoothed Particle

Smoothed Particle Hydrodynamics for Water Waves

2007 ◽  
Author(s):  
Robert A. Dalrymple ◽  
Benedict Rogers ◽  
Muthukumar Narayanaswamy ◽  
Shan Zou ◽  
Moncho Gesteira ◽  
...  
Keyword(s):  
Numerical Method ◽  
Smoothed Particle Hydrodynamics ◽  
Water Waves ◽  
Lagrangian Method ◽  
Computational Domain ◽  
Flowing Liquid ◽  
Time Stepping ◽  
Particle Hydrodynamics ◽  
Smoothed Particle

Smoothed Particle Hydrodynamics provides a numerical method particularly well suited to examine the breaking of water waves due to the ability of the method to cope with splash. The method is a meshfree Lagrangian method that allows the computational domain to deform with the flowing liquid. Here we discuss the appropriate kernels used in the interpolation and the time stepping alogrithms. Applications to water waves are shown.

Simulation de l'écoulement au cours du procédé de rotomoulage par la méthode Smoothed Particle Hydrodynamics (SPH)

2008 ◽  
Vol 96 (6) ◽  
pp. 263-268 ◽  
Author(s):  
E. Mounif ◽  
V. Bellenger ◽  
A. Ammar ◽  
R. Ata ◽  
P. Mazabraud ◽  
...  
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Particle Hydrodynamics ◽  
Smoothed Particle

Numerical Simulation of Flow in Complex Geometries by Using Smoothed Particle Hydrodynamics

2020 ◽  
Vol 59 (40) ◽  
pp. 18236-18246
Author(s):  
Tianwen Dong ◽  
Yadong He ◽  
Jianchun Wu ◽  
Shiyu Jiang ◽  
Xingyuan Huang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Smoothed Particle Hydrodynamics ◽  
Complex Geometries ◽  
Particle Hydrodynamics ◽  
Smoothed Particle

scholarly journals Review of smoothed particle hydrodynamics: towards converged Lagrangian flow modelling

2020 ◽  
Vol 476 (2241) ◽  
pp. 20190801
Author(s):  
Steven J. Lind ◽  
Benedict D. Rogers ◽  
Peter K. Stansby
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Graphics Processing Units ◽  
Wave Structure ◽  
Free Form ◽  
Mesh Free ◽  
Weakly Compressible ◽  
Particle Hydrodynamics ◽  
Massively Parallel Computing ◽  
Smoothed Particle ◽  
Graphics Processing

This paper presents a review of the progress of smoothed particle hydrodynamics (SPH) towards high-order converged simulations. As a mesh-free Lagrangian method suitable for complex flows with interfaces and multiple phases, SPH has developed considerably in the past decade. While original applications were in astrophysics, early engineering applications showed the versatility and robustness of the method without emphasis on accuracy and convergence. The early method was of weakly compressible form resulting in noisy pressures due to spurious pressure waves. This was effectively removed in the incompressible (divergence-free) form which followed; since then the weakly compressible form has been advanced, reducing pressure noise. Now numerical convergence studies are standard. While the method is computationally demanding on conventional processors, it is well suited to parallel processing on massively parallel computing and graphics processing units. Applications are diverse and encompass wave–structure interaction, geophysical flows due to landslides, nuclear sludge flows, welding, gearbox flows and many others. In the state of the art, convergence is typically between the first- and second-order theoretical limits. Recent advances are improving convergence to fourth order (and higher) and these will also be outlined. This can be necessary to resolve multi-scale aspects of turbulent flow.

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