Numerical analysis on cavitation effects in submerged water jet added with turbulent drag-reducing additives of CTAC

Li, Guodong; Deng, Shunjie; Guan, Jinfa; Yao, Su

doi:10.1016/j.ces.2018.11.025

Cited by 8 publications

(2 citation statements)

References 23 publications

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“…It is related to the characteristic of the nanobubble that has high stability in the water as a result of the ion-shielding mechanism [21]. In bubble modeling, the k-Ω turbulence model was applied to provide accurate simulation results including the standard k-Ω [22], and the SST (shear stress transport) k-Ω [23]. The latter model was utilized for CFD simulation in this study.…”

Section: Model Description 21 Cfd-pbm Coupled Modelingmentioning

confidence: 99%

Population Balance Modeling and Multi‐Response Optimization of a Swirling‐Flow Nanobubble Generator

2022

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A novel model is proposed to optimize a swirling‐flow nanobubble generator utilizing a combined model of computational fluid dynamics‐population balance method (CFD‐PBM) coupled model and response surface method (RSM). The CFD‐PBM coupled model was validated by experiments based on the bubble size distribution and mass transfer. The validated model was utilized as an input for optimization using RSM. Optimization involved three factors and four target responses obtained by applying a central composite design (CCD). The adequacy of the models was evaluated by analysis of variance. Based on the optimization results, the proposed model can produce an optimized and feasible solution as a reference in the design of a nanobubble generator and can be applied further on a larger scale.

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Section: Model Description 21 Cfd-pbm Coupled Modelingmentioning

confidence: 99%

Population Balance Modeling and Multi‐Response Optimization of a Swirling‐Flow Nanobubble Generator

2022

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“…[3] The results showed that the breaking efficiency of the abrasive slurry jet was better than that of the abrasive water jet, and a mathematical model was developed for rock stress under the impact of the abrasive slurry jet, which could reflect the stress distribution of the rock. [4] et al Investigated the cavitation and bubble collapse phenomena resulting from the addition of drag-reducing polymers to water jets. The coefficients of the viscous and surface tension terms were obtained by fitting the numerical solution to the Rayleigh-Plesset equation, and the Cross model was used to express the shear thinning properties of the polymer solution.…”

Section: Introductionmentioning

confidence: 99%

Abrasive Slurry Jet Characteristics Study

Liu

2024

AJST

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In this paper, a coupled computational fluid dynamics-discrete element (CFD-DEM) approach is used to investigate the performance of abrasive slurry jets. Firstly, the CFD method was used to simulate the VES slurry jet flow characteristics. Secondly, an orthogonal design method was used to analyse the sensitivity of the parameters of zero shear viscosity , relaxation time and flow index of the Cross fluid, in which zero shear viscosity had the most significant effect on the flow field. As the zero-shear viscosity increases, the velocity of the flow field gradually increases, but the core section of the jet becomes less concentrated and the core section of the jet decreases. Based on the VES fluid formulation used in this project, the optimum zero-shear viscosity, relaxation time and flow index were optimised to 2.5 Pa-s, -0.1s and 0.2 respectively. The results showed that the addition of VES surfactant enhanced the erosion rate of the specimens and that the erosion rate increased with increasing OTAC concentration.

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Experimental and numerical study of cavitating particulate flows in a Venturi tube

Shi

Liu

et al. 2020

Chemical Engineering Science

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Numerical analysis on cavitation effects in submerged water jet added with turbulent drag-reducing additives of CTAC

Cited by 8 publications

References 23 publications

Population Balance Modeling and Multi‐Response Optimization of a Swirling‐Flow Nanobubble Generator

Population Balance Modeling and Multi‐Response Optimization of a Swirling‐Flow Nanobubble Generator

Abrasive Slurry Jet Characteristics Study

Experimental and numerical study of cavitating particulate flows in a Venturi tube

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