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Wear Analysis of Hydraulic Lifting Elbow with CFD-DEM Coupling Method
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Peilin LI1, 2, Yang WU2, Jiazhao SUN1, 3, Yingjie HU1, Xinyu MA4
Mining and Metallurgical Engineering | 2026, 46(3) : 97 - 105
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Mining and Metallurgical Engineering | 2026, 46(3): 97-105
• SPECIAL TOPIC ON BREAKTHROUGHS IN KEY TECHNOLOGIES AND COORDINATED DEVELOPMENT OF INDUSTRIAL CHAINS FOR DEEP-SEA MINERAL RESOURCE EXPLOITATION •
Wear Analysis of Hydraulic Lifting Elbow with CFD-DEM Coupling Method
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Peilin LI1, 2, Yang WU2, Jiazhao SUN1, 3, Yingjie HU1, Xinyu MA4
Affiliations
  • 1.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, Guangdong, China
  • 2.School of Civil and Transportation Engineering, Guangzhou University, Guangzhou 510006, Guangdong, China
  • 3.State Key Laboratory of Coastal and Offshore Engineering, Ocean University of China, Qingdao 266100, Shandong, China
  • 4.Shenyang Xinlan Ocean Engineering Co., Ltd., Shenyang 110167, Liaoning, China
doi: 10.3969/j.issn.0253-6099.2026.03.012
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Aiming at the erosion failure problem of 90° elbows in deep-sea mining systems, a study was carried out on the wear evolution mechanism under the coupling action of solid-liquid two-phase flow. In combining with the CFD-DEM two-way coupling method and analysis of variance (ANOVA), the influence weights of pipe-to-particle diameter ratio, initial fluid velocity, and particle shape on pipe wear were quantitatively evaluated. The results show that the influence of single factors on the maximum wear rate of the pipe is in the following descending order:pipe-to-particle diameter ratio > initial fluid velocity > particle shape; while the influence of multi-factor interactions on the maximum wear rate is also in the following descending order:initial fluid velocity and pipe-to-particle diameter ratio > particle shape and pipe-to-particle diameter ratio > initial fluid velocity and particle shape. With a lower pipe-to-particle diameter ratio, the elbow suffers severe overall wear, with peak wear concentrated in the middle section of the elbow; with a higher pipe-to-particle diameter ratio, the elbow has its peak wear presenting in the upstream impingement section, with the wear rate in the middle and rear sections of the elbow in an obvious declining trend.

fluid mechanics  /  solid-liquid two-phase flow  /  deep-sea mining  /  90° elbow  /  wear characteristics  /  CFD-DEM  /  ANOVA  /  pipeline transportation  /  pipe wear  /  hydraulic lifting
李沛霖, 吴杨, 孙佳昭, 胡英杰, 马鑫宇. CFD-DEM耦合下的水力提升弯管磨损分析. 矿冶工程杂志, 2026 , 46 (3) : 97 -105 . DOI: 10.3969/j.issn.0253-6099.2026.03.012
Peilin LI, Yang WU, Jiazhao SUN, Yingjie HU, Xinyu MA. Wear Analysis of Hydraulic Lifting Elbow with CFD-DEM Coupling Method[J]. Mining and Metallurgical Engineering, 2026 , 46 (3) : 97 -105 . DOI: 10.3969/j.issn.0253-6099.2026.03.012
Appendix
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Year 2026 volume 46 Issue 3
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doi: 10.3969/j.issn.0253-6099.2026.03.012
  • Receive Date：2026-04-15
  • Online Date：2026-10-08
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  • Received：2026-04-15
Funding
Affiliations
    1.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, Guangdong, China
    2.School of Civil and Transportation Engineering, Guangzhou University, Guangzhou 510006, Guangdong, China
    3.State Key Laboratory of Coastal and Offshore Engineering, Ocean University of China, Qingdao 266100, Shandong, China
    4.Shenyang Xinlan Ocean Engineering Co., Ltd., Shenyang 110167, Liaoning, China
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表12种不同金属材料的力学参数
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Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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