水资源与水工程学报2025，Vol.36Issue(6)：130-137,8.DOI:10.11705/j.issn.1672-643X.2025.06.16
高拱坝挑流对冲消能泄洪雾化数值模拟研究
Numerical simulation of energy dissipation and flood discharge atomization in high arch dam flow diversion
摘要
Abstract
High-arch dams commonly employ energy dissipation of opposed jets to enhance flow energy dissipation;however,this process is often accompanied by intense atomization,which remains less un-derstood compared with the dissipation performance itself.To address this gap,a water-air two-phase flow model was developed to investigate atomization behavior during spillway discharge.The model was used to analyze the effects of discharge rate and the surface-bottom flow ratio on atomization-induced wind velocity and rainfall intensity.Results show that both atomization wind velocity and rainfall intensity increase substantially as discharge rises.While the peak wind velocity tends to stabilize,its affected re-gion continues to expand;whereas the peak rainfall intensity exhibits exponential growth.Under constant total discharge,the surface-bottom flow ratio demonstrates a nonlinear regulatory effect on atomization characteristics.When the flow ratio is 0.50,atomization wind velocity first decreases and then increases.For rainfall intensity,a critical point emerges at a flow ratio of 0.75,beyond which the intensity increa-ses initially and then decreases with further increases in flow ratio.关键词
高拱坝/对冲消能/泄洪雾化/水气两相流/雾化风速/降雨强度/数值模拟Key words
high arch dam/energy dissipation of opposed jets/flood discharge atomization/water-air two-phase flow/atomization wind velocity/rainfall intensity/numerical simulation分类
建筑与水利引用本文复制引用
刘刚,程军,童富果,田斌..高拱坝挑流对冲消能泄洪雾化数值模拟研究[J].水资源与水工程学报,2025,36(6):130-137,8.基金项目
国家自然科学基金项目(52209135) （52209135）
湖北省自然科学基金青年项目(2023AFB032) （2023AFB032）
湖北省教育厅科学研究计划青年人才项目(Q20241210) （Q20241210）
