The mechanism of joint effects of axial-flow pump cavitation and sediment wear
This article studies the flow trajectories and the wear law of sediment particles in a pump considering multiple variables, such as sediment concentration, particle size, and cavitation stage. In addition, the mechanism of joint effects of cavitation and sediment wear of the axial-flow pump is explo...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2020-05-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/1687814020923066 |
| _version_ | 1828834234066796544 |
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| author | Peng Lin Dong Hu Zi-jun Lin Mei-qing Liu Chuan-lin Tang Shu Wang |
| author_facet | Peng Lin Dong Hu Zi-jun Lin Mei-qing Liu Chuan-lin Tang Shu Wang |
| author_sort | Peng Lin |
| collection | DOAJ |
| description | This article studies the flow trajectories and the wear law of sediment particles in a pump considering multiple variables, such as sediment concentration, particle size, and cavitation stage. In addition, the mechanism of joint effects of cavitation and sediment wear of the axial-flow pump is explored. In this work, the characteristics of cavitation and sediment wear in an axial-flow pump are investigated by the numerical simulation using shear stress transport k–ω turbulence model with experimental validation. The external characteristics of experimental results and numerical simulations are in agreement. The results show that the sediment concentration exerts a profound influence on the vacuole distribution in the pump, while the particle size has little effect on it. Cavitation can increase the volume fraction of the solid, accelerate the wear on the components, and affect the sediment distribution in the impeller. Cavitation and sediment wear are mutually worsening, and their joint effects will form a vicious circle. With the decrease in inlet pressure and the increase in sediment concentration and particle size, the maximum wear rate will gradually increase, which proves that cavitation, sediment concentration, and particle size are the main factors that influence the maximum wear rate. |
| first_indexed | 2024-12-12T17:35:36Z |
| format | Article |
| id | doaj.art-ea9d901ad18a471cb283e08a60caf4aa |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-12T17:35:36Z |
| publishDate | 2020-05-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-ea9d901ad18a471cb283e08a60caf4aa2022-12-22T00:17:14ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402020-05-011210.1177/1687814020923066The mechanism of joint effects of axial-flow pump cavitation and sediment wearPeng Lin0Dong Hu1Zi-jun Lin2Mei-qing Liu3Chuan-lin Tang4Shu Wang5School of Energy and Electromechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi, ChinaSchool of Energy and Electromechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi, ChinaGraduate Institute of Interpretation and Translation, Shanghai International Studies University, Shanghai, ChinaSchool of Power and Mechanical Engineering, Wuhan University, Wuhan, ChinaSchool of Energy and Electromechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi, ChinaSchool of Energy and Electromechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi, ChinaThis article studies the flow trajectories and the wear law of sediment particles in a pump considering multiple variables, such as sediment concentration, particle size, and cavitation stage. In addition, the mechanism of joint effects of cavitation and sediment wear of the axial-flow pump is explored. In this work, the characteristics of cavitation and sediment wear in an axial-flow pump are investigated by the numerical simulation using shear stress transport k–ω turbulence model with experimental validation. The external characteristics of experimental results and numerical simulations are in agreement. The results show that the sediment concentration exerts a profound influence on the vacuole distribution in the pump, while the particle size has little effect on it. Cavitation can increase the volume fraction of the solid, accelerate the wear on the components, and affect the sediment distribution in the impeller. Cavitation and sediment wear are mutually worsening, and their joint effects will form a vicious circle. With the decrease in inlet pressure and the increase in sediment concentration and particle size, the maximum wear rate will gradually increase, which proves that cavitation, sediment concentration, and particle size are the main factors that influence the maximum wear rate.https://doi.org/10.1177/1687814020923066 |
| spellingShingle | Peng Lin Dong Hu Zi-jun Lin Mei-qing Liu Chuan-lin Tang Shu Wang The mechanism of joint effects of axial-flow pump cavitation and sediment wear Advances in Mechanical Engineering |
| title | The mechanism of joint effects of axial-flow pump cavitation and sediment wear |
| title_full | The mechanism of joint effects of axial-flow pump cavitation and sediment wear |
| title_fullStr | The mechanism of joint effects of axial-flow pump cavitation and sediment wear |
| title_full_unstemmed | The mechanism of joint effects of axial-flow pump cavitation and sediment wear |
| title_short | The mechanism of joint effects of axial-flow pump cavitation and sediment wear |
| title_sort | mechanism of joint effects of axial flow pump cavitation and sediment wear |
| url | https://doi.org/10.1177/1687814020923066 |
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