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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 现任中国工程热物理学会流体机械专委员会委员、中国航空学会学轻型燃气轮机分会委员、教育部重型燃气轮机教学资源库专家委员会委员、辽宁省能动类专业教指委副主任、大连市核事故应急指挥部专家组成员等职。
性别：女
毕业院校：大连理工大学
学位：硕士
所在单位：能源与动力学院
电子邮箱：dlwxf@dlut.edu.cn
Numerical Investigation on the Effect of Cooling Steam on the Erosion to the Flue Gas Turbine Impeller Based on CFD
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论文类型：会议论文
发表时间：2010-03-28
收录刊物：EI、CPCI-S、Scopus
关键字：flue gas turbine; erosion of impeller; CFD; cooling steam
摘要：In this study, the numerical study was conducted to investigate the effect of cooling stream on the erosion to the flue gas turbine impeller by using the commercial CFD software NUMECA. The Spalart-Allamaras turbulence model was employed in this computation. It was found that with increasing the inlet pressure or the mass flow of the cooling steam, the erosion at the tip region of the impeller caused by the vortex could be alleviated. On the other hand, the erosion caused by the catalyst particles inside the cooling steam flowing passage can be also prevented. However, it is important to be noticed that increasing the inlet pressure and the mass flow may decrease the efficiency of the flue gas turbine's main flow. Therefore, it can be conclude that there must exit a critical point for inlet pressure and mass flow, at which the flue gas turbine can reach the optimal condition. The systemic research of the optimal design is should still needed in further study.