人民黄河2024，Vol.46Issue(3)：126-131,6.DOI:10.3969/j.issn.1000-1379.2024.03.023
基于LES的水工钢闸门流激振动数值模拟研究
Numerical Simulation of Flow Induced Vibration of Hydraulic Steel Gate Based on LES
摘要
Abstract
In view of the complexity of flow induced vibration mechanism of steel gate and the frequent occurrence of flow induced vibration of steel gate in engineering practice,taking two-dimensional flat steel gate as an example and based on ADINA finite element analysis software,the flow field finite element model and solid finite element model under different opening degrees were established respectively,the dynamic response law of hydraulic steel gate with different opening degrees was explored,and the difference of dynamic response of steel gate under one-way and two-way fluid structure coupling was clarified,then the mechanism of flow induced vibration of hydraulic steel gate was revealed.The results show that a)with the increase of opening degrees,the fluctuating pressure at different positions of the flow field is decreased gradually,and the frequency of vortex shedding near the steel gate is decreased gradually.b)For hydraulic steel gate,one-way fluid struc-ture coupling can be used instead of two-way fluid structure coupling.c)The mechanism of flow-induced vibration of hydraulic steel gate is that the vortex shedding frequency of the flow field around the steel gate is consistent with or close to the first-order natural vibration frequency of the steel gate structure,resulting in the resonance of the steel gate.关键词
钢闸门结构/流激振动/数值分析/大涡模拟Key words
steel gate structure/flow induced vibration/numerical analysis/large eddy simulation分类
建筑与水利引用本文复制引用
郭博文,高玉琴,范冰,刘智..基于LES的水工钢闸门流激振动数值模拟研究[J].人民黄河,2024,46(3):126-131,6.基金项目
江西省水工安全工程技术研究中心开放研究基金资助项目(2020GGCZX03) （2020GGCZX03）
河南省自然科学基金青年科学基金资助项目(202300410545) （202300410545）
江西省青年基金资助项目(2021BA214045) （2021BA214045）
黄委优秀青年人才科技项目(HQK-202314) （HQK-202314）
