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contributor authorWang, Ziyang
contributor authorCheng, Huaiyu
contributor authorLuo, Xianwu
contributor authorPeng, Xiaoxing
contributor authorJi, Bin
date accessioned2025-04-21T10:08:47Z
date available2025-04-21T10:08:47Z
date copyright11/27/2024 12:00:00 AM
date issued2024
identifier issn0098-2202
identifier otherfe_147_05_051502.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4305593
description abstractCavitation erosion in hydraulic machinery constitutes a multifaceted, instantaneous physicochemical process resulting in material wear and decreased efficiency. This paper employs an enhanced Eulerian–Lagrangian method to evaluate cavitation erosion. The method captures erosive impact loads released by the nonspherical collapse of near-wall bubbles and integrates them with a one-dimensional ductile material mode, a capability lacking in traditional homogeneous mixture methods. A classic axisymmetric nozzle test case is conducted under four different cavitation numbers (σ = 0.8, 0.9, 1.09, and 1.6) to validate the reliability of the new approach. Qualitative and quantitative analysis demonstrates that the impact load distribution on the lower and upper walls aligns with experimental measurements. Compared with reference works, the new method accurately predicts the maximum wear position and yields a narrower erosion area closer to the experimental data. Moreover, the relative error of the minimum incubation time at σ = 0.9 on the lower wall calculated by the new method is 4.67%, and the relative error of the maximum wear rate is 36.6%. This method is pivotal for further studying how various materials respond to cavitation wear. Further analysis reveals that material response patterns are similar under cavitation erosion conditions at σ = 0.8, 0.9, and 1.09. In contrast, the material surface wear rate is reduced by 46.7%, and the incubation time nearly triples at σ = 1.6.
publisherThe American Society of Mechanical Engineers (ASME)
titleAn Improved Eulerian–Lagrangian Method Combined With Ductile Material Model for Cavitation Erosion Assessment
typeJournal Paper
journal volume147
journal issue5
journal titleJournal of Fluids Engineering
identifier doi10.1115/1.4067036
journal fristpage51502-1
journal lastpage51502-17
page17
treeJournal of Fluids Engineering:;2024:;volume( 147 ):;issue: 005
contenttypeFulltext


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