博士生孙秉宇论文被国际知名期刊“Engineering Failure Analysis”(SCI三区)录用
近日，由王旱祥教授指导的博士研究生孙秉宇撰写的论文《Experimental and numerical analysis of solid particle erosion on the grinding tool in polymer-flooding wastewater treatment》被国际著名期刊“Engineering Failure Analysis”正式录用。“Engineering Failure Analysis”期刊涉及工程材料的结构、性质和行为等领域的研究，重点报道描述工程失效分析和相关研究的论文，IF:2.203。
The particles in polymer-flooding wastewater can cause the grinding tool erosion failure during the grinding process, resulting in the grinding tool not meeting the treating requirement. In this paper experimental and numerical analysis methods are used to explore erosion failure phenomenon, erosion mechanisms, for reducing the erosion damages of the grinding tool during polymer-flooding wastewater treatment processes. Based on the three-dimensional numerical simulation, the maximum erosion surface is found and the erosion rates of different surfaces of the grinding tool are calculated. The validity of the simulation model is verified by on-site experimental value. Combined with erosion morphology observation of samples cut from the grinding tool by SEM and the flow characteristics analysis by CFD, two erosion mechanisms are proposed basing on different flow fields. Furthermore, the effect between operating parameters (rotating speed, flow rate) and the erosion rate of the grinding tool is investigated and the mathematical model is built. Based on this mathematical model, operating parameters are optimized to improve the corrosion resistance and extend service life of the grinding tool during the polymer-flooding wastewater treatment.