河南水利与南水北调2024，Vol.53Issue(10)：75-76,89,3.
大型双向卧式泵站内流特性及能量损失特性研究
Research on Internal Flow and Energy Loss Characteristics of Large Two-way Horizontal Pumping Station
摘要
Abstract
This study focuses on a specific large two-way horizontal pumping station,conducting numerical simulations to investigate the internal flow and energy loss characteristics.The calculation results show that:the presence of the saddle type zone leads to the occurrence of adverse flow phenomena such as reflux,separation of flow,and vortex formation within the pump assembly;the axial force on the symmetrical S-shaped impeller exhibits a clear linear relationship with flow rate,while the radial force lacks a discernible pattern;additionally,the residual swirl at the guide vane outlet and the significant reflux phenomenon at the outlet section of the outlet channel contribute to the predominant distribution of high turbulent kinetic energy zones at the inlet and outlet sections of the outlet channel.Moreover,the highest energy losses occur within the impeller,particularly within the saddle type zone,reaching up to 22.58 m,and the lowest energy losses within the outlet channel.These research findings provide valuable insights for the design and upgrading of pump stations.关键词
双向泵站/内流特性/能量损失/数值模拟Key words
two-way pumping station/internal flow/energy loss/numerical simulation分类
建筑与水利引用本文复制引用
马筱霞,韩春辉,姚钰龙..大型双向卧式泵站内流特性及能量损失特性研究[J].河南水利与南水北调,2024,53(10):75-76,89,3.基金项目
江苏省研究生科研创新计划项目(KYCX24_3755) （KYCX24_3755）
