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Hanqiao Han, Yun Long and Jinqing Zhong
When we tested the water jet propulsion pump, we found that there were significant vibrations in the pump, especially at small flow points that deviated from the design conditions. The water jet propulsion pump is a mixed-flow pump with guide vane, which...
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Weidong Cao, He Wang and Jian Tang
Guide vane submersible centrifugal pumps are a kind of submersible pump, and the fluid inside the pump is often mixed with gravel and other impurities during operation, affecting the pump?s operating efficiency and life expectancy. However, past studies ...
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Xiaogang Ma, Mengying Bian, Yang Yang, Tingting Dai, Lei Tang and Jun Wang
This article explores the impact of inlet pre-swirl on pressure pulsation in a mixed-flow centrifugal pump through a combination of numerical simulations and experimental verification. Firstly, the mixed-flow centrifugal pump?s performance was initially ...
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Qiaoyue Yang, Wei Li, Leilei Ji, Weidong Shi, Wei Pu, Yu Long and Xinrui He
This study presents a comprehensive investigation of the internal noise characteristics of a mixed-flow pump by combining computational fluid dynamics (CFD) and computational acoustics. The turbulent flow field of the pump is simulated using the unsteady...
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Feng Han, Xionghuan Chen, Yang Yang and Chuan Wang
In this article, the influence of rotor?stator distance on the pump performance and rotor?stator interaction strength within mixed-flow centrifugal pump was investigated based on numerical calculation and test verification. Firstly, the performances of m...
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Hu Zhang, Jianbo Zang, Weidong Shi and Desheng Zhang
To understand the formation mechanism and evolution process of the perpendicular cavitation vortex (PCV) of an axial flow pump for off-design conditions, turbulent cavitating flows were numerically investigated using the rotation curvature-corrected shea...
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Chenhao Li, Xingqi Luo, Jianjun Feng, Guojun Zhu and Yangang Xue
In the petroleum industry, multiphase transport pumps are a crucial technology for petroleum extraction. Therefore, the pressure fluctuation and internal-flow characteristics of multiphase transport pumps with different inlet-gas-volume fractions (IGVFs)...
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Qiong Hu, Li Zou, Tong Lv, Yingjie Guan and Tiezhi Sun
The Y-shaped elbow is used as a connecting pipe between the buffer and the lift pipe in the deep-sea mining system. After being mixed with seawater in the Y-shaped elbow, nodule particles are lifted to the sea surface mining ship via the lift pump. In th...
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Abhay Patil, Sujan Gudigopuram, Burak Ayyildiz, Adolfo Delgado and Gerald Morrison
A four stage helicoaxial pump was tested under varying operating conditions. A range of inlet pressures, rotational speeds (3000, 3600 rpm), and gas void fractures (GVFs) were considered for two fluid viscosities. The head developed and power input to ru...
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Stefan Höller, Helmut Benigni and Helmut Jaberg
Besides operating a centrifugal pump under normal conditions there are additional operating conditions possible; for example, a pump operated as turbine. Another example would be a pump trip where there are several abnormal operating conditions possible ...
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