中文摘要：

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。

英文摘要：

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.