珠江河口区水环境整体数学模型研究

根据珠江河口区的特点，建立了珠江河口区水流，泥沙及含氟度的整体联解数学模型，探讨了联解的计算模式；利用珠江三角洲和河口区水流泥沙、含氟度连续条件，把珠江三角洲网河区一维水沙、含氟度输移数学模型和河口区二维水沙、含氟度输移数学模型进行联解。同时采用最新的地形资料并选用洪、中、枯水及大、中、小潮等多种水文组合条件对该模型进行分区验证和整体验证，模型验证成果满足精度要求。

Mathematic Modelling on Water Environment of Estuarine Area of the Pearl River

Based on characteristics of estuarine area of the Pearl River, one and two dimensional mathematic models of flow, sediment and chlorinity in the estuarine area of the Pearl River are established and joint calculation patterns are discussed. Applying continuity conditions of flow, sediment and chlorinity in the Delta and estuarine area of the Pearl River, joint solution of one dimensional mathematic model of flow, sediment and chlorinity transport in delta channel network area and two dimensional mathematic model of flow, sediment and chlorinity transport in estuarine area is carried out .In the meantime, the latest topographic data and multi_hydrologic condition combination of high, medium and low water and spring, medium and neap tide are applied to verify the models. The verification results meet the reguirements of accuracy.