Smoothed particle hydrodynamics: Methodology development and recent achievement

Zhang, Chi; Zhu, Yujie; Wu, Dong; Adams, Nikolaus A.; Hu, Xiangyu

doi:10.1007/s42241-022-0052-1

Cited by 46 publications

(8 citation statements)

References 257 publications

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Section: Simulation Of the Fs Processmentioning

confidence: 99%

“…In this study, the SPH method is used to model the thermo-mechanical behavior of an Al-Si alloy consumable rod that has been treated with a solid solution during the FS process. The equations of conservation of momentum, energy, and mass in their SPH forms, based on previous studies, 9,24 can be defined as follows: The SPH formulation of equation of material momentum, mass conservation, and energy conservation are as below: where t, ρ, Vfalse→, P, μ, .1emf→ext, e, εv, K, T, ϑi, q, and qH is time, velocity, pressure, viscosity, external force, internal energy, energy dissipation rate, thermal conductivity, temperature, kinematic viscosity of the particle i, heat flux, and heat generation rate, respectively. The deformation behavior of the consumable rod was imported into the model through the Johnson-Cook equation as follows: 9 The constant used in the Johnson-Cook equation is reported in Table 1.…”

Section: Simulation Of the Fs Processmentioning

confidence: 99%

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Post-processing ageing treatment of friction surfaced Al-16Si alloy: experimental and theoretical studies

Bararpour,

Jamshidi Aval,

Jamaati

et al. 2024

Materials Science and Technology

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In this study, we investigated the impact of ageing heat treatment following friction surfacing of a solid solution-treated Al-16Si alloy on coating geometry, microstructure, and wear resistance. We employed a simulation using the smoothed-particle hydrodynamics (SPH) method alongside experimental analysis. The simulation results revealed that as the rotational speed increased from 600 to 1000 rpm, the coating efficiency decreased significantly from 31.2 to 13.1%. When comparing the coating to the substrate and the consumable rod, it was seen that after ageing heat treatment, the wear rate of the coating made at a rotational speed of 600 rpm dropped by a lot, by 70% compared to the substrate and by 53% compared to the consumable rod.

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Section: Simulation Of the Fs Processmentioning

confidence: 99%

Section: Simulation Of the Fs Processmentioning

confidence: 99%

Post-processing ageing treatment of friction surfaced Al-16Si alloy: experimental and theoretical studies

Bararpour,

Jamshidi Aval,

Jamaati

et al. 2024

Materials Science and Technology

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“…24 As one of the earliest particle method, SPH has become a promising alternative to mesh-based methods and widely developed for fluid mechanics problems, structural analysis and fluid-solid interactions. 27,28 Despite this, SPH has suffers several drawbacks in comparison with classical FEM. 29,30 In the present study, the particle inconsistency and tensile instability problems are solved by using the kerneral correction though Symmetric Smoothed Particle Hydrodynamics (SSPH) 31,32 and Total Lagrangian formulation in the initial undeformed configuration.…”

Section: Ssph Formulationmentioning

confidence: 99%

Symmetric SPH modeling of functionally graded nanocomposite plates subjected to low‐velocity impact

Li,

Lin,

Naceur

et al. 2023

Polymer Composites

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Functionally graded (FG) composites reinforced by carbon nanotubes (CNTs) have received extensive attention due to their excellent mechanical properties. The impact responses of FG‐CNT nanocomposites are analyzed by the developed meshless method. The temperature‐dependent material properties are expressed by way of the extended rule of mixture. The kinematics of the composite plate is established on the basis of the first‐order shear deformation theory. The modified Hertzian contact law is adopted to evaluate the impact loading between the plate and the impactor. The dynamic balance equations of the plate are constructed and computed by the Systemic Smoothed Particle Hydrodynamics (SSPH) method with strengthened prediction ability. The impacting behaviors of the FG‐CNT nanocomposite plate, as well as the parametric effects, are analyzed by the developed model and the suitability is clearly demonstrated.Highlights Impact of FG‐CNTRC is firstly solved by a self‐developed meshless SPH model. Strong capacity of the SPH impact model is clearly demonstrated. More CNTs close to the strike face would improve the impact resistance.

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“…order to avoid the implicit calculation scheme. The time axis is divided into n layers, and the position of the particle on the next layer is calculated using the following steps [26] 1 2…”

Section: Fig 4 Kinetics Of Changes In Concentration Of Nitrate Anions...mentioning

confidence: 99%

“…Particles move and interact with each other using a core of smoothing with an appropriate smoothing length h. For this study, we avoid using the Gaussian core and choose a more suitable piecewise Wendland core [26]…”

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confidence: 99%

Research on an eco-safe filtration plant for wastewater treatment made of natural raw materials

Byelyanska,

Krasnikov,

Nakonechnyi

2023

Nauk. visn. nat. hirn. univ.

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Purpose. To develop a new eco-safe filtration plant for wastewater treatment based on natural and secondary raw materials, which will allow rational use of natural resources with further mathematical modeling of hydrodynamics of mixing treated wastewater in bioponds to predict removal of residual concentrations from the filter. Methodology. A complex of modern methods of theoretical and experimental research was used to solve the tasks. Concentration of pollutants was determined using methods of atomic adsorption spectroscopy, titrimetry and gravimetric methods, as well as pyrometric analysis. A laboratory installation was created, which included a receiving tank, a filter column, and a tank for collecting purified wastewater. Prediction of distribution and mixing of treated effluent in bioponds was carried out using mathematical and computer software. Findings. An environmentally safe filtration plant (containing sand, fallen leaves of linden, poplar, and plastic residues separated by a polymer mesh) was created to purify wastewater from suspended substances and nitrates. Kinetics of changes in concentration of suspended solids and nitrates in urban wastewater were studied. When using the filtration plant, concentration of suspended solids decreased by 85–92 %. Concentration of nitrates in purified water processed with such a plant is reduced from 12 to 0.25–0.05 mg/dm3. A mathematical model concerning distribution of purified water in a biopond was obtained, which allows predicting possible migration distributions of residual concentrations in purified water during its natural movement downstream. Originality. For the first time, influence of the species origin of fallen leaves on the performance indicators of wastewater filtration plant of urban sewage treatment constructions was investigated, which made it possible to substantiate a new way of disposal of this type of waste. For the first time, it was established that wastewater treatment using an eco-safe filtration plant based on natural and secondary raw materials, containing layers of sand, fallen oak, linden, and poplar leaves, gives an opportunity to reduce contents of suspended solids in wastewater by 1.5 times of the maximum permissible concentration; and such treatment also reduces concentration of nitrates by 4 times from the initial level. Pollutants from wastewater are mechanically fixed in pockets (microcracks, cracks) of fallen leaves, formed during drying of leaves, which is explained by hardening of intercellular spaces with formation of a specific geometry of holes. For the first time, mathematical modeling of purified wastewater movement in a biological pond with a complex geometry was performed, which allows estimating the concentration of the pollutant at its outlet from the pond. Practical value. The created environmentally safe wastewater filtration plant gives an opportunity to perform not only filtering, but also an effective biological purification of wastewater from nitrates on the surface of layers of fallen leaves. The wide use of the proposed installation will allow attracting plastic of polyethylene bottles used in everyday life as a secondary raw material. Based on the proposed mathematical model of movement of purified liquid containing residual concentrations of pollutants, it is possible to carry out qualitative forecasting and optimization of the process of cascade wastewater treatment at industrial and economic enterprises.

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Smoothed particle hydrodynamics: Methodology development and recent achievement

Cited by 46 publications

References 257 publications

Post-processing ageing treatment of friction surfaced Al-16Si alloy: experimental and theoretical studies

Post-processing ageing treatment of friction surfaced Al-16Si alloy: experimental and theoretical studies

Symmetric SPH modeling of functionally graded nanocomposite plates subjected to low‐velocity impact

Research on an eco-safe filtration plant for wastewater treatment made of natural raw materials

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