水利学报2025，Vol.56Issue(7)：898-908,11.DOI:10.13243/j.cnki.slxb.20240778
基于伴随方法的多沙泵站前池流态优化探索
Exploration of flow pattern optimization in the forebay of a sediment-laden pump station based on the adjoint method
摘要
Abstract
In the forebay of a forward intake pumping station in a sediment-laden river,the sudden cross-sectional expansion readily leads to the formation of vortices,which cause significant sediment accumulation,which interfere with the normal operation of the pumping station.To address this issue,measures such as the installation of diversion piers are commonly employed to optimize the flow conditions.However,traditional optimization methods face signifi-cant bottlenecks,including numerous combinations of operating conditions,strong subjectivity,and reliance on empirical approaches,which hinder the achievement of optimal design solutions.This study integrates adjoint optimi-zation algorithms from aerodynamics with the theory of two-phase water-sediment flow.By solving the sensitivity func-tion,both the flow field equation and the adjoint equation are iteratively solved simultaneously,achieving optimiza-tion of the water-sediment flow state in the pumping station forebay.The results indicated that for the traditional octagonal diversion pier,the adjoint optimization method was applied to fine-tune its geometric shape,effectively eliminating large-scale vortices.The uniformity of characteristic cross-sectional flow velocity reached 90.23％,while the vortex structure volume decreased by 85.47％compared to no rectification measures,and by 75.32％compared to the traditional diversion pier scheme.Additionally,sediment deposition was reduced by 65.22％.The optimization outcomes were highly significant.The proposed optimization algorithm provides a novel approach for the deep optimi-zation and efficient operation of pumping station forebays.关键词
多泥沙河流/伴随优化算法/水沙两相流/泥沙淤积/漩涡结构Key words
sediment-laden river/adjoint optimization algorithm/two-phase water-sediment flow/sediment deposi-tion/vortex structure分类
建筑与水利引用本文复制引用
王海东,许栋,冉启华,袁赛瑜,唐洪武..基于伴随方法的多沙泵站前池流态优化探索[J].水利学报,2025,56(7):898-908,11.基金项目
国家重点研发计划项目(2022YFC3200032) （2022YFC3200032）
国家自然科学基金项目(52179076,U2443219) （52179076,U2443219）
