概念化水资源系统及其面向对象构架设计

该文提出概念化水资源系统模拟的面向对象设计方法,对概化元素属性及其在水循环过程中的功能进行描述,从而将系统划分为相互关联的功能模块。通过对系统基本元素的划分和功能的归纳,设计了相应的类及其子类,并以水量运动和利用过程为基础建立了类之间的交互关系。不同模块的计算可以通过实例化后的类对象实现,并借助主控程序完成系统的整体模拟,实现了模块间分层次的耦合。以该设计方法构建的模型对海南岛水资源配置进行模拟计算,得出了不同方案的水资源供需态势和水量平衡变化趋势,检验了其有效性和可行性。

Conceptualization and object-oriented-based design of water resources simulation

An improved object-oriented design for conceptual water resources simulation is developed with each abstracted element characterized by its attribute and function in water cycle,thus the whole water system is divided into several interrelated functional modules.The system has three kinds of base classes for basic elements with more subclasses derived from these base classes. The relationships between system classes are based on water movements and utilizations in the system.Hence,the simulation couples functional modules through hierarchical controls with interactions between objects.The objects representing different elements can be instantiated in the simulation with the processes between different modules.A computable model is developed by this design method to simulate and analyze water resources allocation in Hainan Island with results of water demand-supply balance and the changing tendency of water cycle under various scenarios.