紊流浆流直管段冲刷磨损机理的实验研究

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-07-07 DOI:10.1016/j.wear.2025.206221

Ariel Espinoza-Jara , Magdalena Walczak , Gianandrea Vittorio Messa , Wernher Brevis , Alessandro Pascone , Cristina Tedeschi

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引用次数: 0

摘要

泥浆处理系统的可靠设计和运行在采矿等行业至关重要。本研究考察了直管段中固体颗粒撞击造成的侵蚀，引入了“湍流侵蚀磨损”的概念。超声颗粒图像测速（UPIV）用于观察延展性目标（铜）表面的流动。实验条件分别为1.97和2.15 m/s，粒径分别为500和700 μm。对扫描事件进行识别，并利用小波分析对其频率、强度和持续时间进行分析。结果表明，固体颗粒在扫描过程中的速度影响与磨损痕的几何形状有关。紊流侵蚀磨损与冲击速度的特征阈值有关。该值提供了一个可测量的参数，以增强预测建模和管道设计的材料选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Experimental insights into sweep-induced mechanism of erosive wear in a straight pipe section with turbulent slurry flow

Reliable design and operation of slurry handling systems are critical in industries such as mining. This study examines erosion due to solid particle impacts in a straight pipe section, introducing the concept of “turbulent erosive wear”. Ultrasound particle image velocimetry (UPIV) is used to observe flow at the surface of a ductile target (copper). Experiments are conducted at flow velocities of 1.97 and 2.15 m/s, with particle sizes of 500 and 700

μ

m. Sweep events are identified, and their frequency, intensity, and duration are analysed using wavelet analysis. The results show that velocity impacts of solid particles during sweeps correlate with the geometry of wear scars. Turbulent erosive wear is linked to a characteristic threshold value of impact velocity. This value provides a measurable parameter to enhance predictive modelling and material selection for pipeline design.

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.