基于河网水流特性,建立了面向对象的通用河网非恒定流模型,根据模型数据驱动运行机制的要求,从关系数据模型的角度对河网模型中各种类型的数据设计相应的数据模式,使不同的计算模型共享相同的实测数据,并结合开源的GIS软件对可视化的计算程序进行分层设计。在长江下游大通至镇江段的应用结果表明,该程序能实现多方案比较,具有一定的实用性、通用性。 Based on the characteristics of river flow, an object-oriented universal river network unsteady flow model is established. According to the requirements of model data-driven operation mechanism, corresponding data models are designed for all kinds of data in river network model from the perspective of relational data model, Make different calculation models share the same measured data, and design a visualization calculation program by using open source GIS software. The application results from Datong to Zhenjiang in the lower reaches of the Yangtze River show that the program can achieve a multi-program comparison and has certain practicality and versatility.