SPH Simulation of Hydraulic Jump on Corrugated Riverbeds

Gu, Song; Bo, Fuping; Luo, Min; Kazemi, Ehsan; yunyun, zhang; Wei, Jiahua

doi:10.3390/app9030436

Cited by 8 publications

(5 citation statements)

References 34 publications

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“…In Chern and Syamsuri [76] and Gu et al [77], a smoothed particle hydrodynamics (SPH) model was applied to investigate the effect of various corrugated beds on the hydraulic jump.…”

Section: Numerical Methods With a Lagrangian Approachmentioning

confidence: 99%

Hydraulic Jump: A Brief History and Research Challenges

Padova

Mossa

2021

Water

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This paper presents a brief history of the hydraulic jump and a literature review on hydraulic jumps’ experimental and numerical studies. Leonardo da Vinci noticed this phenomenon early on, but it was only later studied by Bidone in 1820. Since the beginning of the 20th century, the hydraulic jump has received a lot of attention following the development of energy dissipater designs and stilling basins. The late 1920s and early 1930s saw many experimental studies researching the surface roller profile and energy dissipation. The study of internal flow features started in the late 1950s. Starting in the 70s, it was believed that the flow of a jump must be analyzed in its actual configuration of air–water mixture, an aspect that cannot be overlooked. Several experimental studies in the late 1980s and 1990s highlighted the existence of oscillating phenomena under specific flow conditions and particularly, a cyclic variation of jump types over long-lasting experiments. The early 2000s saw many experimental studies researching the complex structure of the separated region in very large channels downstream of the lateral shockwaves. Whereas most of the experiments provide measurements at a point or on a plane, the complete flow field supplied by CFD simulations enables us to have a deeper understanding of the dynamics of coherent structures that are responsible for free-surface fluctuations and aeration in hydraulic jumps. Therefore, in recent years, the computational fluid dynamics (CFD) method, through turbulence models, has become a useful tool to study this complex environmental fluid mechanic problem.

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“…In Chern and Syamsuri [76] and Gu et al [77], a smoothed particle hydrodynamics (SPH) model was applied to investigate the effect of various corrugated beds on the hydraulic jump.…”

Section: Numerical Methods With a Lagrangian Approachmentioning

confidence: 99%

Hydraulic Jump: A Brief History and Research Challenges

Padova

Mossa

2021

Water

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“…To correctly characterize particle motion, an approximate function is needed to characterize particle motion information. The integral expression of the SPH function f (x) can be expressed as a discretized form that supports the summation of all particles in the domain [23,24]:…”

Section: Fertilizer Motion Simulationmentioning

confidence: 99%

Analysis of Movement Law and Influencing Factors of Hill-Drop Fertilizer Based on SPH Algorithm

Gao

Zhang

et al. 2020

Applied Sciences

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Studying the movement law and influencing factors of fertilizer in soil and controlling fertilizer distribution can improve the quality of fertilization, which is of great significance for promoting crop yield. In this paper, a 3D simulation model of the hill-drop fertilizer device and soil was established by the Smoothed Particle Hydrodynamics (SPH) algorithm, and the simulation model was modified using the Mohr–Coulomb criterion, and fertilizer movement in the soil under the disturbance of the cover was simulated and analyzed by the SPH algorithm. Orthogonal simulation experiments and the range analysis method were used to study the overall displacement and deformation of fertilizer, and the key factors affecting fertilizer movement were analyzed. After fertilization, the soil was layered with a soil sampler, and a digital image processing method was used to detect the fertilizer distribution in different soil depths; then, the fertilizer movement was inferred. The results of the field experiment showed that the trend of fertilizer movement was consistent with the results of the simulation experiment, which provides a reference for studying the movement and distribution of fertilizer in soil.

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“…Previous studies using SPH to model sluice gate opening [3], [4], successfully have concentrated on the formation of the hydraulic jump and the effects of the shape and roughness of the discharge area. Other studies [5], [6], deal with the addition of an obstacle close to the discharge area and how the shape of the hydraulic jump changes in time. Studies using the analytical SWE equations to calibrate SPH models [1], [4], do not mention the effect of low resolution on shallow depths or rely on relatively short lengths to model high aspect ratios.…”

Section: Introductionmentioning

confidence: 99%

Flow under long two-dimensional dam sluice gate using WSPH

Gapper

Serrano-Pacheco

2021

Ingeniería

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An application of the weakly compressible Smoothed Particle Hydrodynamics (WSPH) numerical method is presented here for the case of two-dimensional flow in a long channel with a partially open sluice gate. The results are compared with an analytical solution provided by shallow water equations (SWE) and available experimental data. Of particular interest is the application of this numerical method to a sluice gate case with a high ratio of channel length to depth, which tends to amplify the effects of the chosen numerical resolution. Good model congruence was observed even for relatively low vertical resolution, and the effects of the equations used to describe the boundary conditions were identified.

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SPH Simulation of Hydraulic Jump on Corrugated Riverbeds

Cited by 8 publications

References 34 publications

Hydraulic Jump: A Brief History and Research Challenges

Hydraulic Jump: A Brief History and Research Challenges

Analysis of Movement Law and Influencing Factors of Hill-Drop Fertilizer Based on SPH Algorithm

Flow under long two-dimensional dam sluice gate using WSPH

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