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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 Interaction between the Volume and Diffuser with Different Outlet Angles in Nuclear Main Pump
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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：reactor coolant pump; diffuser; outlet angle; turbulent flow field; numerical simulation
摘要：In this study, the numerical investigation on the interaction between the volume and the diffuser with different outlet angles in the nuclear main pump was conducted by using the commercial software NUMECA. It was found that the static pressure increases gradually from the diffuser outlet to the volume wall with the maximum value presenting near the volume wall. The back flow at the volume outlet results in a significant flow loss, which is the main reason for the low efficiency of the nuclear main pump. Moreover, the pump head and efficiency increases with decreasing the outlet installation angle of the diffuser. However, it is important to be noticed that the growth rate become increasingly small with a little decrease of the pump head when increasing the outlet angle to 20 degrees, which means 20 degrees should be the optimal angle for installing the diffuser outlet.