颗粒射流冲击材料行为研究

doi:10.13700/j.bh.1001-5965.2017.0050

北京航空航天大学学报 ›› 2017, Vol. 43 ›› Issue (11): 2266-2272.doi: 10.13700/j.bh.1001-5965.2017.0050

颗粒射流冲击材料行为研究

姚军^1,2, 曾子华², 周芳², 董士刚², 赵彦琳¹, 李宁²

1. 中国石油大学(北京) 机械与储运工程学院, 北京 102249;
2. 厦门大学能源研究院, 厦门 361005

收稿日期:2017-02-06 修回日期:2017-07-14 出版日期:2017-11-20 发布日期:2017-09-18
通讯作者: 姚军 E-mail:yaojun@cup.edu.cn
作者简介:姚军,男,博士,教授,博士生导师。主要研究方向:多相流。
基金资助:
国家自然科学基金（51376153，51406235）

Investigation of behaviour of particle impact on material by impinging jet

YAO Jun^1,2, ZENG Zihua², ZHOU Fang², DONG Shigang², ZHAO Yanlin¹, LI Ning²

1. College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China;
2. School of Energy Research, Xiamen University, Xiamen 361005, China

Received:2017-02-06 Revised:2017-07-14 Online:2017-11-20 Published:2017-09-18
Supported by:
National Natural Science Foundation of China (51376153, 51406235)

摘要/Abstract

摘要： 颗粒冲击材料现象广泛存在于自然界以及工业领域中。应用实验测量与数值计算相结合的方法研究了颗粒射流冲击材料（304不锈钢）的磨损行为。考虑了颗粒粒径、运动轨迹、颗粒-壁面撞击点分布以及所导致材料物相结构变化。实验测试包括材料质量损耗、材料元素X射线衍射（XRD）分析、表面微观结构扫描电镜（SEM）观察。对相应的颗粒射流冲击材料行为进行了数值计算，获得流场，颗粒场以及相应材料磨损。结果表明：颗粒射流冲击下颗粒运动轨迹与撞击点的分布不同，造成了材料样品表面磨损区域明显不同。颗粒-壁面碰撞不仅会导致材料损失而且会造成材料物相结构的变化。

关键词: 颗粒, 射流, 磨损, 数值计算, 实验研究

Abstract: Particle-material impact is popular in the nature and industries. In this work, experimental measurement and numerical calculation were carried out to investigate the particle impinging jet effect on the behaviour of material (304 stainless steel). Herein, particle diameter, particle tracking trajectories, particle-wall collision point distribution were considered to study material loss and the phase change of material structure. In the experimental work, the measurements were carried out for material mass loss, material element X-ray diffractometry (XRD) analysis, surface micro-structure scanning electron microscopy (SEM) observation and so on. In addition, the behaviour of particle impinging jet impact on wall material was studied by numerical simulations. Particularly, flow fields, particle trajectories and wall material loss were obtained. The results show that particle collision point distribution is quite different from their tracking trajectories under particle impinging jet impact, which causes the wear zones on sample surface different from each other obviously. It is concluded that particle-wall impact will not only lead to material loss but also cause the phase change of material structure.

Key words: particle, impinging jet, wear, numerical simulation, experiment research

中图分类号:

TK121
V250.3

姚军, 曾子华, 周芳, 董士刚, 赵彦琳, 李宁. 颗粒射流冲击材料行为研究[J]. 北京航空航天大学学报, 2017, 43(11): 2266-2272.

YAO Jun, ZENG Zihua, ZHOU Fang, DONG Shigang, ZHAO Yanlin, LI Ning. Investigation of behaviour of particle impact on material by impinging jet[J]. JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2017, 43(11): 2266-2272.

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颗粒射流冲击材料行为研究

Investigation of behaviour of particle impact on material by impinging jet

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