灌溉排水学报2025，Vol.44Issue(11)：27-37,11.DOI:10.13522/j.cnki.ggps.2025116
大偏角侧向进水泵站上下游流态协同建模与验证研究
Numerical and experimental study of upstream and downstream flows in pumping stations with large-deflection-angle lateral intake
摘要
Abstract
[Background and Objective]Pumping stations with large-deflection-angle lateral intakes often exhibit complex hydraulic behaviors,such as uneven velocity distribution and local recirculation,affecting operational stability and efficiency.To address these challenges,we used numerical simulation and physical experiments to analyze the upstream and downstream flow patterns of the pumping station.[Method]The study was based on a pumping station in Tianjin.A 1∶50 physical model and a CFD numerical model were developed to simulate the shaft-tube pumping system.Flow field characteristics,velocity distribution,and water level variations were analyzed under different operating conditions.[Result]The upstream inlet pool exhibited overall smooth flow with a right-bank deflection and weak counterclockwise recirculation,where the bottom velocities ranged from 0.59 to 0.65 m/s.The downstream outlet pool maintained stable and symmetrical flow,with velocities at the box culvert outlet ranging from 1.0 to 1.68 m/s,forming a clear velocity gradient due to the mid-channel island.Water level monitoring revealed a two-stage decline following pump startup,with the maximum drawdown reaching 0.89 m at the suction inlet under the highest water level condition.Numerical and experimental results were generally consistent in reproducing the main flow features and velocity distributions,though minor discrepancies occurred in the forebay recirculation and water level response time.[Conclusion]Our findings demonstrate the effectiveness of the inlet and outlet design in improving the hydraulic performance of the pumping station,and that the physical and numerical models provide an effective method for analyzing and optimizing flow patterns in large-deflection-angle lateral intakes of pumping stations.关键词
侧向进水/水力特性/数值模拟/物理模型试验Key words
lateral inflow/hydraulic characteristics/numerical simulation/physical model test分类
水利科学引用本文复制引用
王拯谦,王瑞海,李旭,陈海峰,丰淑云,贺怀杰..大偏角侧向进水泵站上下游流态协同建模与验证研究[J].灌溉排水学报,2025,44(11):27-37,11.基金项目
企业科研资助项目(01SL242630A,KY2024-SD-01-02) （01SL242630A,KY2024-SD-01-02）
