An experimental and numerical study of slurry erosion behavior in a horizontal elbow and elbows in series

Wang, Qiuchen; Huang, Qiyu; Wang, Nianrong; Wen, Yunhao; Ba, Xili; Sun, Xu; Zhang, Jun; Karimi, Soroor; Shirazi, Siamack A.

doi:10.1016/j.engfailanal.2021.105779

Cited by 27 publications

(11 citation statements)

References 47 publications

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“…Finally, by using element motion in the near wall region estimates of material removal due to collisions can be generated at each wall node. By following this procedure, detailed erosion maps can be generated for geometry analysis [2]. While CFD simulations can yield highly detailed results, their accuracy has come under scrutiny in many papers [31].…”

Section: Methodsmentioning

confidence: 99%

“…The applicability of the DPM is limited to solid concentrations where the influence of inter-particle collisions can be neglected. Wang et al [2] found the influence of inter-particle collisions to be negligible at solid concentrations up to 5.37% wt., while Kloss et al [37] limited their use of DPM modelling to below 5% by volume. Lagrangian inter-particle collision models have been used in [38,39] to extend the range of applicability to higher concentrations of solid particles.…”

Section: Eulerian-lagrangian Approachmentioning

confidence: 99%

“…To model the erosion process in turbulent flows, steady state Reynolds-averaged Navier-Stokes (RANS) equations have been combined with a variety of turbulence models to simulate fluid flows [32]. This approach has been used somewhat successfully over the past couple of decades [2,33]. While the RANS approach can be used to establish the timeaveraged erosion characteristics of a particle-laden fluid, it is unable to establish the unsteady nature of turbulent flows being modelled.…”

Section: Eulerian-lagrangian Approachmentioning

confidence: 99%

“…Pipework, turbines, pump components and valves can all become heavily damaged by E-C. Improper management can lead to loss of productivity, unplanned downtime, or complete component failure, with obvious environmental and safety concerns. Erosion-corrosion is said to be the primary cause of fluid leakage in pipelines and is estimated to cost the Canadian oil sands industry $1bn a year in damages [2,3]. Owing to its importance within industry, the field of erosion-corrosion has enjoyed plentiful research over several decades.…”

Section: Introduction Erosion-corrosion (mentioning

confidence: 99%

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Erosion-Corrosion in Pipe Flows of Particle-Laden Liquids

Wood¹,

Cook²

2023

Advances in Slurry Technology

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The transmission of particle-bearing liquids in pipes has motivated continuing research into erosion mechanisms and the distribution of erosion rates over wetted surfaces. This chapter covers these initiatives with particular reference to erosion-corrosion modelling within bends and straight sections of cylindrical pipes manufactured in a variety of materials and transporting a variety of liquids. Erosion-corrosion modelling techniques such as submerged slurry jets and rotating cylinder electrodes have been used to study factors influencing material degradation. Improvements in computational fluid dynamics (CFD), such as the development of a moving deforming mesh (MDM) have improved the accuracy of CFD models in predicting pipe wall erosion rates. Combined discrete phase tracking approaches such as the CFD-DPM-DEM (discrete phase-discrete element model) have helped improve computational efficiency. Wall impact erosion models are calibrated using laboratory scale tests. Validation of CFD models using full-scale test data is rare, meaning their accuracy is still largely unreported. Material testing has helped to identify the resilience of prospective pipeline materials to erosion-corrosion, while modifications to internal geometry and pipe section have shown potential to improve erosion-corrosion resistance.

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Section: Methodsmentioning

confidence: 99%

Section: Eulerian-lagrangian Approachmentioning

confidence: 99%

Section: Eulerian-lagrangian Approachmentioning

confidence: 99%

Section: Introduction Erosion-corrosion (mentioning

confidence: 99%

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Erosion-Corrosion in Pipe Flows of Particle-Laden Liquids

Wood¹,

Cook²

2023

Advances in Slurry Technology

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“…Erosion can substantially reduce the service life of pipelines and increase the production cost [ 1 ]. The erosion induced in multiphase flow is very complicated and is essentially sustained by flow regimes, impact conditions, disperse phase properties, and flow characteristics [ 2 , 3 ]. Complex disperse phase and carrier fluid interactions take place inside pipelines that affect the erosion-induced damage [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Elbow Angle on Erosion-Corrosion of 1018 Steel for Gas–Liquid–Solid Three Phase Flow

Khan

Shah

et al. 2022

Materials

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Erosive wear due to the fact of sand severely affects hydrocarbon production industries and, consequently, various sectors of the mineral processing industry. In this study, the effect of the elbow geometrical configuration on the erosive wear of carbon steel for silt–water–air flow conditions were investigated using material loss analysis, surface roughness analysis, and microscopic imaging technique. Experiments were performed under the plug flow conditions in a closed flow loop at standard atmospheric pressure. Water and air plug flow and the disperse phase was silt (silica sand) with a 2.5 wt % concentration, and a silt grain size of 70 µm was used for performing the tests. The experimental analysis showed that silt impact increases material disintegration up to 1.8 times with a change in the elbow configuration from 60° to 90° in plug flow conditions. The primary erosive wear mechanisms of the internal elbow surface were sliding, cutting, and pit propagation. The maximum silt particle impaction was located at the outer curvature in the 50° position in 60° elbows and the 80° position in 90° elbows in plug flow. The erosion rate decreased from 10.23 to 5.67 mm/year with a change in the elbow angle from 90° to 60°. Moreover, the microhardness on the Vickers scale increased from 168 to 199 in the 90° elbow and from 168 to 184 in the 60° elbow.

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