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Simulation study on sediment wear in a centrifugal pump with adjustable guide vanes based on shape factor modification
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Shaopeng LU1, Lin GAO2, Shuai LIU1, Mendi CHEN3, Honggang FAN3
Fluid Machinery | 2026, 54(1) : 101 - 109
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Fluid Machinery | 2026, 54(1): 101-109
Simulation study on sediment wear in a centrifugal pump with adjustable guide vanes based on shape factor modification
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Shaopeng LU1, Lin GAO2, Shuai LIU1, Mendi CHEN3, Honggang FAN3
Affiliations
  • 1Guangdong Yuehai Yuexi Water Supply Co.，Ltd.，Zhanjiang 524033，China
  • 2China Water Resources Pearl River Planning，Surveying & Designing Co.，Ltd.，Guangzhou 510610，China
  • 3Department of Energy and Power Engineering，Tsinghua University，Beijing 100084，China
Published: 2026-01-30 doi: 10.3969/j.issn.1005-0329.2026.01.013
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To address the sediment wear issue in a centrifugal pump with adjustable guide vanes within a large‑scale water diversion project，a numerical prediction method based on the Euler-Lagrangian approach and a shape‑factor‑modified Oka model was established to study the internal flow field characteristics and wear patterns under low‑concentration sediment conditions.The results indicate that when the sediment concentration does not exceed 0.135 kg/m3，its influence on the internal flow field of the centrifugal pump is no more than 5%.Wear is primarily concentrated at the trailing edge of the blade suction side，the junction with the front shroud，and the leading edge of the adjustable guide vanes.The average wear intensity on the suction side is approximately 8.3 times that on the pressure side.Sediment concentration predominantly governs the linear regulation of wear intensity，while particle size primarily governs the wear distribution pattern：small particles cause severe wear at the trailing edge of the suction side，whereas large particles，due to inertial effects，shift wear towards the pressure side and the rear shroud.This study provides a theoretical basis for the wear‑resistant design and safe operation of centrifugal pumps with adjustable guide vanes.

adjustable guide vane  /  centrifugal pump  /  shape factor  /  wear characteristics  /  sediment parameters
陆少鹏, 高琳, 刘帅, 陈门迪, 樊红刚. 基于形状因子修正的带活动导叶离心泵泥沙磨损模拟研究. 流体机械, 2026 , 54 (1) : 101 -109 . DOI: 10.3969/j.issn.1005-0329.2026.01.013
Shaopeng LU, Lin GAO, Shuai LIU, Mendi CHEN, Honggang FAN. Simulation study on sediment wear in a centrifugal pump with adjustable guide vanes based on shape factor modification[J]. Fluid Machinery, 2026 , 54 (1) : 101 -109 . DOI: 10.3969/j.issn.1005-0329.2026.01.013
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Year 2026 volume 54 Issue 1
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Article Info
doi: 10.3969/j.issn.1005-0329.2026.01.013
  • Receive Date：2025-07-28
  • Online Date：2026-10-22
  • Published：2026-01-30
Article Data
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History
  • Received：2025-07-28
  • Revised：2025-10-15
Affiliations
    1Guangdong Yuehai Yuexi Water Supply Co.，Ltd.，Zhanjiang 524033，China
    2China Water Resources Pearl River Planning，Surveying & Designing Co.，Ltd.，Guangzhou 510610，China
    3Department of Energy and Power Engineering，Tsinghua University，Beijing 100084，China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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