Study of the Sediment Transport Law in a Reverse-Slope Section of a Pressurized Pipeline

Wang, Jiayi; Li, Yitian; Pan, Li; Liu, Zhiqiang; Jian, Shengqi

doi:10.3390/w12113042

Cited by 3 publications

(3 citation statements)

References 34 publications

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“…Stevenson [32] reported that downward-inclined pipe is more prone to sand deposition than upward-inclined pipe. Wang [33] used a single variable to conduct experimental research on an inclined pipe. They found that there is an optimal angle between the horizontal and inclined pipes, which makes the critical velocity have a maximum value.…”

Section: Introductionmentioning

confidence: 99%

Study on Critical Velocity of Sand Transport in V-Inclined Pipe Based on Numerical Simulation

Yao

Zeng

et al. 2022

Water

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The Yellow River has a high sand content, and sand deposition in the pipelines behind the pumping station occurs from time to time. It is of great significance to reasonably predict the critical velocity of the small-angled V-inclined water transportation pipes. In this study, a Eulerian multiphase model was employed to simulate the solid–liquid two-phase flow. Based on the conservation of the sand transport rate, the critical velocity of the V-inclined pipe was predicted. The effects of simulated pipeline length, pipe inclination and particle size were investigated. The results show that when the simulated pipeline length reached a certain value, it did not affect the prediction of the critical velocity of the overall pipeline. The ±2∘ pipe inclination had a negligible effect on the critical velocity for transporting small-sized particles, but it led to the nonuniform and asymmetrical distribution of liquid velocity and sand deposition at the different cross-sections. As the particle size increased, the critical velocity also increased. However, the influence of particle size on the critical velocity is currently complicated, resulting in a large difference between numerical simulation and empirical formulas when transporting large-sized particles. Accurate prediction of critical velocity is important for long-distance water transportation pipelines to prevent sand deposition and reduce costs.

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Section: Introductionmentioning

confidence: 99%

Study on Critical Velocity of Sand Transport in V-Inclined Pipe Based on Numerical Simulation

Yao

Zeng

et al. 2022

Water

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“…From the perspective of engineering applications, the two most important issues in the study of pipeline transportation processes are the influence of sediment movement on energy dissipation and the sediment deposition law in the process of pipeline transportation [22]. Regarding the problem of sediment deposition inside the pipeline, some researchers have measured the evolution of sediment at the bottom of a pipeline and analyzed the physical and chemical characteristics of the sediment, as well as the characteristics of the sediment's movement [23,24].…”

Section: Introductionmentioning

confidence: 99%

“…Regarding the problem of sediment deposition inside the pipeline, some researchers have measured the evolution of sediment at the bottom of a pipeline and analyzed the physical and chemical characteristics of the sediment, as well as the characteristics of the sediment's movement [23,24]. Some researchers have conducted in-depth research on critical sediment deposition velocity [7,22,23,25], resistance loss [26,27] and other related topics. However, as a complex two-phase flow movement, pipeline sediment transport still has space for further research.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized Pipes

Zhang

et al. 2021

Water

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Sediment transport in pipes is an effective engineering measure used to reallocate water–sediment resources and is widely used in reservoir flooding and sediment discharging, river dredging, floodplain area deposition, as well as other projects. An experimental investigation of sediment transport in pressurized pipes, with heterogeneous sediment (d50 = 107 μm) of the lower Yellow River as the experimental material, is presented. This study mainly explored the change law of sediment transport and sorting in pressure pipes with an internal diameter of 0.08 m. The experimental results reveal that the presence of sediment significantly changed the distribution of the flow velocity field. At the same flow rate, the velocity of the lower water body with a high sediment concentration decreased, while that of the upper water body increased. At a low water flow rate, the increase in sediment concentration caused an asymmetric distribution of the cross-sectional velocity. The vertical concentration decreased in height, and the obvious stratification of vertical sediment particles was observed. With the increase in the flow rate, the asymmetry of the velocity distribution significantly decreased, the concentration profile tended towards being uniformly distributed along the vertical direction, and the separation effect of the sediment particles weakened.

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Experimental investigation of the motion states of coarse particles with sediment-laden flow in a horizontal pipe

Lai,

Zhao,

Lai

et al. 2023

Powder Technology

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Study of the Sediment Transport Law in a Reverse-Slope Section of a Pressurized Pipeline

Cited by 3 publications

References 34 publications

Study on Critical Velocity of Sand Transport in V-Inclined Pipe Based on Numerical Simulation

Study on Critical Velocity of Sand Transport in V-Inclined Pipe Based on Numerical Simulation

Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized Pipes

Experimental investigation of the motion states of coarse particles with sediment-laden flow in a horizontal pipe

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