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为探讨平原河网区配水方案,以慈溪市城河河网为例,在对城河河网进行概化处理的前提下,以表征明渠水流基本运动规律的圣维南方程为理论依据,结合具体的边界条件和初始条件,采用水力计算软件求其数值解。并根据不同计算方案下的数值模拟成果,对不同控制条件下“同时配水”方案与“轮流配水”方案进行了分析,从防洪控制水位要求以及断面平均流速变化情况入手,对不同配水方案下的河网水力特征模拟结果进行分析,旨在为进一步实施城河河网的调水配水工作提供参考依据。
In order to explore the scheme of water distribution in plain river network area, taking Cixi city river network as an example, under the generalization of urban river network, based on the Saint-Venant equation which characterizes the basic movement of open channel water flow, Specific boundary conditions and initial conditions, the use of hydraulic calculation software for numerical solution. According to the results of numerical simulation under different calculation schemes, the scheme of “simultaneous water distribution” and “alternate water distribution” under different control conditions was analyzed. Based on the requirement of flood control and the change of average velocity of section, This paper analyzes the simulation results of river network hydraulic characteristics under the water distribution scheme and aims to provide reference for the further implementation of water and water distribution in urban river networks.