基于流场数值模拟的磁力驱动冷凝泵入口流动分析  

Inlet Flow Analysis in Magnetic-Drive Condenser Pump Based on Numerical Simulation of Flow Field

作　　者：孔繁余[1] 张洪利[1] 高翠兰[1] 薛宽荣[2] 

机构地区：[1]江苏大学流体机械工程技术研究中心,江苏镇江212013 [2]杭州大路实业有限公司,杭州311234

出　　处：《核动力工程》2010年第2期37-42,共6页Nuclear Power Engineering

基　　金：国家科技支撑计划项目(2008BAF34B10);国家自然科学基金资助项目(50509009)

摘　　要：为了提高磁力驱动冷凝泵的抗汽蚀性能,在泵叶轮入口处配置了变螺距诱导轮,并建立了吸入口配置变螺距诱导轮和未配置变螺距诱导轮的两种模型。采用Fluent软件对磁力驱动冷凝泵内流场进行数值模拟,给出了其内部压力分布以及粒子流动迹线图。通过两组数据的比较,得到了内部流场的主要特征。模拟结果表明,磁力驱动冷凝泵吸入口配置变螺距诱导轮可以有效提高抗汽蚀性能。Variable-pitch inducers can be mounted before the impeller inlet to improve the anti-cavitation properties of magnetic-drive condenser pump.The fluid field of two magnetic-drive condenser pump models,which with and without the variable-pitch inducer before the impeller inlet,was numerically simulated by Fluent program,and the distribution of pressure was taken out and the trace of the particle was plot.The main characteristics of the interior fluid field were described by comparing with two groups of data.The results of numerical simulation show that the pump with the variable-pitch inducer can improve the anti-cavitation performance.

关 键 词：冷凝泵 变螺距 诱导轮 流场 数值模拟 汽蚀性能 

分 类 号：TH311[机械工程—机械制造及自动化]