城市地表雨水汇流运动波计算方法研究  

Calculation of Kinematic Wave for Urban Surface Rainfall Runoff

作　　者：邹霞[1] 刘佳明[1] 张艳军[1] 袁迪[1] 宋星原[1] 

机构地区：[1]武汉大学水利水电学院,湖北武汉430072

出　　处：《水文》2015年第2期12-16,共5页Journal of China Hydrology

基　　金：国家自然科学基金项目(51379149);国家青年基金项目(51209162)

摘　　要：从以圣维南方程为基础的坡面流角度出发,引入运动波描述城市地表汇流过程,同时考虑全面汇流和部分汇流,利用分级叠加法,对净雨强度随时间变化的城市地表雨水径流过程用坡面流运动波方程进行模拟计算,并将地表划分成多个子集水单元,按照各子集水单元的地表属性分别得到相应的流量过程,最后汇总得到区域出口处的流量过程。最后用实测资料对模拟计算结果进行了验证,结果表明模拟结果与实测资料拟合度较高,该方法得出的模拟结果基本合理,可在城市降雨径流计算等方面作为参考。From the point of view for overland flow based on Saint-Venant equations, kinematic wave was introduced to describe the rainfall convergence process for urban surface, sinmhaneously,the linear superimposition was used when the theory for calculating the overland flow under the condition of even rain intensity was improved to calculate the flow process under uneven rain intensity, and the catchment was divided into several units in accordance with their properties, finally the flow process at the outlet was obtained by adding each u nit＇s flow process. At last, the simulated results were verified using the measured data, and show a high degree of data fitting.

关 键 词：坡面流 运动波 城市地表汇流 

分 类 号：TV121.2[水利工程—水文学及水资源]