WASP5水质模型在平原河网区的应用

以平原河网区水环境为研究对象,选择了WASP5系统作为平原河网水质模拟的基本工具,针对WASP5系统自带的DYNHYD5水动力模型功能的局限性,以及平原河网水力调控系统复杂的特征,选择了具有产汇流模拟、闸坝控制模拟及河网水流模拟等功能的三级联解平原河网水动力模型。通过利用C++语言编程,实现了三级联解平原河网水动力模型与WASP5水质模型的耦合,使之可以应用于平原河网水环境的模拟。并把研究成果运用到实际引调水工程中去,模拟引调水工程中不同实施方案下的环境效益,为引调水工程实施方案的确定提供了理论依据。

Application of water quality model WASP5 in water environment simulation of plain river network areas

This paper focused on the water environment of plain river network areas,and WASP5 system was selected as the basic simulation tool.It is found out that the fundamental functions of hydrodynamic model DYNHYD5 in WASP5 are weak in these areas as the natural hydraulic regularity and controlling hydraulic works are complicated in these networks.A three-step hydrodynamic model suitable for solving plain river network was selected,which has the functions of simulating runoff and confluence,dam and sluice control,current in river networks,etc.The idea of coupling the hydrodynamic model with WASP5 water quality model is realized and the coupling model is created with(C( )).The coupling model can properly simulate the water environment in plain river network.The coupling model and the present methods were applied to the simulation of practical water diversion projects.The environmental benefits of different water diversion plans were compared by using numerical simulation method,which provided theoretical references for selection of the executive plan.