平面二维泥沙数学模型研究及其应用

A 2-D mathematical model for suspended sediment and its application

本文利用不平衡输沙模式建立起了一套泥沙冲淤数学模型,其中对恢复饱和系数α、可冲刷厚度Δ_b、河岸侧向冲刷以及浓度对流计算格式都进行了一定的研究和改进,本文的目的在于研究开发二维河道水流及泥沙冲淤数学模型并应用于实际工程计算。

In the paper, a two dimensional mathematical model for suspended sediment and river deformation is put forward based on the theory of nonequilibrium transport of sediment, in the establishment of the model the recovering coefficient, the potential erosion depth , lateral erosion , the numerical scheme for concentration advection and so on are studied. Application of this model is satisfied for the real cases of river bed deformation prediction in the upper back water region of the Three Gorge Project.