黄浦江干流二维水动力实时数学模型研究

2-D real-time modelling of tidal flow in Huangpu River’s mainstream

本文基于二维浅水化水动力学方程组 ,运用伽辽金加权余量法导出适用于黄浦江干流的有限元公式 ,对计算区域采用四边形单元剖分 ,利用有限元数值计算模型模拟黄浦江干流动态水文动态变化过程 。

In this paper, based on 2D depth averaged shallow water equations, a finite element formulation is given by using the method of Galerkin weighted residuals, and the suitable upstream and downstream boundary condifions are suggested. The calculation domain is divided into a series of trapezoidal elements, then the dynamic hydrologic process changing with time is simulated. Finally, a 2D real time model of Huangpu River’s mainstream is developed.