中文摘要：

一个数字模拟模型为在水平排水系统预言短暂免费表面流动基于有一个时间安排插值计划的基于特征的有限差别的方法被开发。数字模型的基本精确性被比较首先与一根单个排水管子的试验性的结果澄清。为连接和拐弯的边界条件，经常在排水系统被遇到，试验性地并且数字地被学习。数字模型被用于一个实际排水系统。有一个照原尺寸的模型实验的比较显示模型能被用来精确地在实际排水网络预言流动特征。

英文摘要：

A numerical simulation model based on the characteristic-based finite-difference method with a time-line interpolation scheme was developed for predicting transient free surface flow in horizontal drainage systems. The fundamental accuracy of the numerical model was first clarified by comparison with the experimental results for a single drainage pipe. Boundary conditions for junctions and bends, which are often encountered in drainage systems, were studied both experimentally and numerically. The numerical model was applied to an actual drainage system. Comparison with a full-scale model experiment indicates that the model can be used to accurately predict flow characteristics in actual drainage networks.