道路雨水口水力特性数值分析研究
Numerical Analysis of Hydraulic Characteristics of Road Rainwater Outfall
汪明洋 1周宏伟 1潘龙阳 1李念念 1刘剑 2高兴1
作者信息
- 1. 四川大学水利水电学院,四川成都 610065
- 2. 西华大学能源与动力工程学院,四川成都 610039
- 折叠
摘要
道路雨水口泄流常以单篦雨水口为对象,缺少对多篦雨水口的研究.构建偏沟式雨水口三维水动力模型,利用Fluent对雨水口模型开展数值模拟实验,对雨水口水力特性进行计算分析.结果表明,雨水口入流均为堰流状态,多篦雨水口主要对侧面水流产生影响,随着入流量的增加,同种雨水口泄流效率无明显变化,多篦雨水口通过增大侧缘面积的方式扩大集水面积进而对泄流产生影响.结果可为城市雨水口布设提供新思路.
Abstract
The drainage of road rainwater outlet is often the object of single grate rainwater outlet,and there is a lack of research on multi-grate rainwater outlet.The three-dimensional hydrodynamic model of the rain-mouth was constructed,and the numerical simulation experiment of the rain-outlet model was carried out by Fluent,and the hydraulic characteristics of the rain-mouth were calculated and analyzed.The results show that the inlet flow of the rainwater outlet is all weir flow,and the multi-grate rainwater outlet mainly affects the side flow.With the increase of the inlet flow,the discharge efficiency of the same rainwater outlet has no obvious change,and the multi-grate rainwater outlet expands the water collection area by increasing the area of the side edge,thus affecting the discharge flow.The results can provide a new idea for the layout of urban rainwater outlets.
关键词
偏沟式雨水口/道路/泄流/水力特性/多篦雨水口Key words
Side-channel type rainwater outlet/road/drainage/hydraulic characteristics/multi-grate rainwater outlet引用本文复制引用
基金项目
四川省重点研发项目(2022YFG0016)
出版年
2024
国家科技期刊平台
NSTL
万方数据