水力发电学报2011，Vol.30Issue(5)：192-198,7.
箱型双向流道轴流泵装置内部流动的数值模拟和试验研究
Study of internal flow in cube-type bidirection passages of axial-flow pump system by numerical simulation and experiment
摘要
Abstract
The pump system with bidirectional box-shaped flow passages is of simple structure and good applicability,but its system efficiency is low and vortex often appears in its suction passage causing vibrations harmful to safe operation.To solve these problems,a new curve diversion structure and an inlet pier design were proposed and applied for renovation of a bidirectional flow pumping station.With numerical simulation,the flow fields of the bidirectional system were obtained and the system＇s hydraulic performances were predicted.Meanwhile,a model was tested on a standard test bench to measure its system performances,and calculations of performance curves were compared with the measurements.Both results for the high efficiency ranges are close to each other,which validates the calculations.It is also shown that the new design,by effectively eliminating the vortex and enhancing system efficiency,ensures safe and economical operation of the pump units.关键词
水力机械/内部流动/数值模拟/双向流道Key words
hydraulic machinery/internal flow/numerical simulation/bidirectional flow passage分类
建筑与水利引用本文复制引用
刘超,金燕,周济人,汤方平,郝春明,韩俊..箱型双向流道轴流泵装置内部流动的数值模拟和试验研究[J].水力发电学报,2011,30(5):192-198,7.基金项目
国家自然科学基金项目 （）
江苏省产学研前瞻性联合研究项目 （）
南水北调工程科技创新项目（KJCX-200807）资助 （）
