机械与电子2016，Vol.34Issue(10)：3-7,12,6.
双向轴流泵装置性能预测与内部流动分析
Performance Prediction and Internal Flow Analysis of the Reversible Axial flow Pump Unit
摘要
Abstract
A numerical study on a reversible axial flow pump unit with S shaped blades was carried out.Under different flow rate conditions,the pump performance at forward and reverse operation modes was analyzed.The transient start up process of the pump was monitored and the unsteady cavitation phe-nomenon in the pump was examined as well.The results show that obvious performance difference exists between the two modes and the pump head and efficiency at the reverse mode are higher than their counter-parts.During the start up process at forward mode,cavitation zone emerges at blade suction surfaces near the blade inlet,while no clear cavitation zone is witnessed at the reverse mode.Pressure fluctuation characteristics at impeller inlet and outlet cross sections for the two modes are similar,and regarding pres-sure fluctuation magnitude,impeller inlet is associated with high values relative to impeller outlet.关键词
双向轴流泵/装置性能/启动过程/空化/速度分布Key words
reversible axial flow pump/pump unit performance/start up process/cavitation/veloc-ity distribution分类
机械制造引用本文复制引用
毛宁,康灿,朱洋,张伟..双向轴流泵装置性能预测与内部流动分析[J].机械与电子,2016,34(10):3-7,12,6.基金项目
江苏省六大人才高峰资助项目(2015 ZBZZ 018) （2015 ZBZZ 018）
江苏高校优势学科建设工程项目资助(苏财教[2015]30号) （苏财教[2015]30号）
