中国河口数学模拟研究的进展

Advances in the Study of Estuarine Mathematical Models in China

我国采用数学模型研究河口及河口工程的可行性已愈加普遍。从总体而言,70年代以河口一维潮流模型为主,进入80年代后,除继续应用推广一维潮流模型外,大多已采用二维潮流数学模型,并按需要配以泥沙、温度、盐度和污染物等物质输移模型,三维模型也已逐步展开。本文从二维数值模型、一维与二维连接混合数值模型、悬移质输移和河床变型数值模型、推移质输沙数值模型、波流共同作用数学模型、拉格朗日余流数值模型、三维数值模型、复合模型等8个方面较全面地论述了我国近15年来河口数值模拟研究的进展,认为从80年代以来,我国将数学模型应用于河口研究已取得显著进展,它已成为研究河口的有力工具。

The feasibility of studying estuary and estuarine engineering problems with mathematical models has become very popular in our country. Overall,the one-dimension tidal model for the estuary was in the dominant position in the 1970s. Since the 1980s,besides the one-dimension tidal model is still used and popularized, the two-dimension tidal mathematical model has also been used in many studies. Further more, accord ing to the need, the mass transport models for sediment, temperature, salinity and pollutants etc. are developed. The three-dimensiom model also began to be used progressively. The advances in the study of estuarine mathematical models in recent fifteen years in our country are discussed comprehensively in this paper from eight aspects,including two-dimension,link of one-dimension and two-dimension,suspended material transport and river bed deformation, bed-load sediment transport,joint action of wave and current,Lagrangian residual current,three-dimension and complex mathematical models, etc. It concludes that since the 1980s,the study of mathematical models applied to estuaries has advanced markedly in our country and has become an effective means for estuary study.