Erosion of sand screens: A review of erosion prediction modelling approaches

Abduljabbar, Abdullah; Mohyaldinn, Mysara Eissa; Younis, Obai; Alghurabi, Ahmed; Alakbari, Fahd Saeed

doi:10.1016/j.powtec.2022.117628

Cited by 4 publications

(1 citation statement)

References 28 publications

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“…where m p is the mass of a particle, C(d p ) is the particle size function, α is the impact angle between particle path and wall surface, f(α) is the impact angle function, v is the relative velocity of particles, b(v) is the particle relative velocity function, and A face is the area of the wall [39]. Under the same conditions, in the 30 • bend, the relative velocity and impact angle of the abrasives is greater than 15 • , so the erosion rate of 30 • is greater than the 15 • bend.…”

Section: Cfd Mechanism Explanation and Analysismentioning

confidence: 99%

Development of a Novel Water Jet Polisher Using Soft Abrasives for Small Complex-Structure Heat Pipes of Aluminum Alloy Produced Using Additive Manufacturing

Zhang,

Feng

et al. 2024

Materials

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It is a challenge to polish the interior surface of a small bent pipe with complex structures and sizes less than 0.5 mm. This is because of the fact that traditional polishing methods could destroy, block, or break the small complex structures. For a small bent pipe made of aluminum alloy produced using additive manufacturing, the defects, such as adhered powders and spatters, are easy to jam the pipe without polishing, possibly resulting in catastrophic failure for aerospace applications. To overcome this challenge, a novel water jet polisher was developed using soft polymethyl methacrylate (PMMA) abrasives. After polishing a specific area, the adhered powders on the interior surface were reduced from over 140 to 2, 3, and 6 by the soft abrasives with mesh sizes of 200, 400, and 600, respectively. The surface roughness Sa was decreased from 3.41 to 0.92 μm after polishing using PMMA abrasives with a mesh size of 200. In comparison, silica abrasives were also employed to polish the small bent pipes, leading to the bent part of pipes breaking. However, this kind of failure was absent when using soft abrasives. Computational fluid dynamics calculations elucidate that a peak erosion rate of silica abrasives for a bent pipe with a turn angle of 30° is 2.18 kg/(m2·s), which is 17 times that of soft abrasives. This is why the small bent pipe was broken using silica abrasives, whereas it remained intact when polished with soft abrasives. In addition, water jet polishing has a lower erosion rate, a relatively smooth erosion curve, and less erosion energy, leaving the bent parts intact. The developed soft abrasive water jet polisher and the findings of this study suggest new possibilities for cleaning the adhered powders and spatters and polishing the interior surface of small bent pipes with complex structures.

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Section: Cfd Mechanism Explanation and Analysismentioning

confidence: 99%