摘要
采用FLOW-3D水流计算软件模拟了溢洪道挑流消能的三维水流流场,并通过调整溢洪道平面布置、增设贴角和改变预挖冲坑范围等措施对溢洪道原设计方案进行了优化。结合水工模型试验成果,对原设计方案和优化方案的水流流态、流速分布和水面线等水力特性进行了对比分析。数值模拟计算结果与水工模型试验比较吻合,说明优化方案的有效性,也进一步表明三维数值模拟的可行性。
The three-dimensional flow field of spillway was numerically simulated using FLOW-3D software.The optimal solution include adjusting plane arrangement of spillway,pulsing bucket and changing pre-dug hole extent of the original spillway.Combining hydraulic model tests,flow pattern,velocity distribution,water surface profile and other hydraulic characteristics of the original program and optimal program flow were analyzed.The value of hydraulic model tests and numerical simulation calculations are in good agreement,which demonstrate the effectiveness of optimization,also shows the feasibility of three-dimensional numerical simulation.
出处
《浙江水利科技》
2012年第2期5-9,共5页
Zhejiang Hydrotechnics
基金
水利部948项目201027
关键词
溢洪道
挑流消能
RNGκ-ε紊流模型
三维数值模拟
spillway
trajectory energy dissipation
RNGκ-ε turbulent model
3D numerical simulation
