|
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
入口非均匀流对核主泵性能影响研究
点击次数：
发表时间：2022-10-04
发表刊物：大连理工大学学报
所属单位：能源与动力学院
卷号：57
期号：5
页面范围：453-458
ISSN号：1000-8608
摘要：Reactor coolant pump (RCP )of CAP1400 reactor coolant system is designed welded directly to the steam generator (SG)channel head,which makes the flow field in the SG channel head outlet nozzle non-uniform. To study the influence of inflow distortion on RCP performances, comparisons of energy, hydrodynamics and cavitation characteristics between non-uniform and uniform inflow conditions are carried out by CFD method through modelling integrally the channel head of SG and RCP impellers.Calculation results show that at 0.7Q0-1.2Q0 the inflow distortion reduces pump head and impeller torque by 1.8％-5.1％ and 1.9％-6.4％ respectively,and efficiency is not affected.With the decrease of head,axial loading drops slightly whereas radial loading increases significantly under non-uniform suction flow.As cavitation occurs,the critical NPSH of the pump increases,anti-cavitation performance is reduced and cavitation area appears obvious asymmetric.
备注：新增回溯数据