二维感潮河流污染计算的分裂特征线解法

Split characteristic method for two-dimentional water pollution computati on of tide river

本文提出的分裂特征线解法，主要用于二维感潮河段的污染计算，为水环境规划提出依据．污染计算实际上是对流扩散方程的数值解法．文中除介绍了分裂特征线解法的计算过程外，还介绍了收敛性、稳定性分析的结论，既有定量的研究，也有定性的讨论．文中所介绍的工程计算实例，验证了方法的准确性．编制的软件已用于我国长江、鸭绿江等河流的水质预测和规划．

The split characteristic method proposed is mainly used for water pollution computation of tidal rivers and it provides a basis for water environment planning. Computation example described shows that the method is accurate. The relevant computer program has now become one of the main tools of water quality planning for the Yangtze River.