Zhengjing Shen^1,2,*, Fanqiang Kong¹, Yu Liu¹, Jilai Zeng¹, Wengang Yang¹, Jiangbo Wu^1,2

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.3, pp. 589-603, 2025, DOI:10.32604/fdmp.2024.058727 - 01 April 2025

Abstract Erosion in slurry pumps presents a persistent challenge in industrial applications. This study examines the erosion of the static components of a 150ZJ-C42 centrifugal slurry pump, currently in operation at a beneficiation plant, under varying particle conditions. Utilizing high-precision three-dimensional reverse engineering, the pump’s flow passage geometry was reconstructed to facilitate detailed erosion analysis. Focusing on the front and rear baffles of the pump chamber, as well as the volute, erosion patterns were analyzed for different particle volume concentrations and sizes. The results reveal that the highest erosion damage consistently occurs near the volute tongue,… More > Graphic Abstract

Tiankui Guo^1,*, Zhilin Luo¹, Shanbo Mou², Ming Chen¹, Yuanzhi Gong³, Jianhua Qin⁴

FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.2, pp. 431-447, 2022, DOI:10.32604/fdmp.2022.017861 - 16 December 2021

Abstract Although the dynamics of proppant (small ceramic balls used to prevent opened fractures from closing on the release of pressure) have been the subject of several numerical studies over recent years, large-scale inclined fractures exist in unconventional reservoirs for which relevant information is still missing. In the present study, this problem is investigated numerically considering the influence of several relevant factors such as the fracture roughness, inclination, the proppant particle size, the injection rate and the fluid viscosity. The results show that a rough wall enables the proppant to travel farther and cover larger areas. More >

Peijian Zhou^1,2, Chaoshou Yan³, Lingfeng Shu⁴, Hao Wang², Jiegang Mou^2,*

FDMP-Fluid Dynamics & Materials Processing, Vol.17, No.5, pp. 871-886, 2021, DOI:10.32604/fdmp.2021.012250 - 05 July 2021

Abstract Single-channel sewage pumps are generally used to transport solid-liquid two-phase media consisting of a fluid and solid particles due to the good non-clogging property of such devices. However, the non-axisymmetric structure of the impeller of this type of pumps generally induces flow asymmetry, oscillatory outflow during operations, and hydraulic imbalance. In severe cases, these effects can jeopardize the safety and stability of the overall pump. In the present study, such a problem is investigated in the framework of a Mixture multiphase flow method coupled with a RNG turbulence model used to determine the structure of… More >