排灌机械工程学报2026，Vol.44Issue(5)：441-449,9.DOI:10.3969/j.issn.1674-8530.24.0044
基于双向流固耦合的鱼类友好型贯流泵叶片变形及流场特性
Blade deformation and flow field characteristics of fish-friendly tubular pump based on two-way fluid-structure interaction
摘要
Abstract
To investigate the impact of blade deformation on the performance of a fish-friendly tubular pump under fluid-structure interaction,based on the ANSYS Workbench platform,a two-way fluid-structure interaction method was employed to jointly solve the internal flow field and impeller structure of a fish-friendly tubular pump.The deformation and stress of the impeller under the two-way fluid-structure interaction were analyzed.Meanwhile,a comparative analysis was conducted on the pump's hydraulic characteristics,impeller blade deformation and stress,blade surface load distribution,and internal flow characteristics before and after the two-way fluid-structure interaction.The research results show a slight increase in both head and efficiency after fluid-structure interaction.At the rim side of the blade leading edge,the deformation is greatest,and as the flow rate increases,the fluctua-tion of impeller deformation significantly decreases.The most significant stress concentration occurs at the hub side of the blade leading edge.As the flow rate increases,the peak equivalent stress value de-creases,and the dynamic stress fluctuations at the hub side of the blade leading edge are reduced.Af-ter the fluid-structure interaction,the fluctuation in load at the leading edge of the blade's back sur-face increases,while the load on the working surface of the blade is less affected by the coupling effect.Under low-flow conditions,the peak value of turbulence kinetic energy inside the impeller passage in-creases after the two-way fluid-structure interaction,and the gradient of turbulence kinetic energy at the blade tip also significantly increases.The research findings have certain reference value for the opti-mization and stable operation of fish-friendly tubular pump impellers.关键词
贯流泵/鱼类友好型/双向流固耦合/应力应变/数值模拟Key words
tubular pump/fish-friendly/two-way fluid-structure interaction/stress-strain/numerical simulation分类
农业科技引用本文复制引用
邢瑞,潘强,张德胜,施卫东..基于双向流固耦合的鱼类友好型贯流泵叶片变形及流场特性[J].排灌机械工程学报,2026,44(5):441-449,9.基金项目
国家自然科学基金资助项目(52209111) （52209111）
江苏省自然科学基金资助项目(BK20220542,BK20211547) （BK20220542,BK20211547）
江苏省水利科技项目(2021007) （2021007）
江苏省重点研发计划项目(BE2021073) （BE2021073）
