摘要
从河道水流一维不稳定流（扩展的圣维南方程组）有限差分的递代方程和地下水的有限元数值方法出发，通过河道四周地下水流与河道水流的交换流量把两个模型数值计算的矩阵方程从理论上耦合起来．理想水文流域系统的计算结果表明，模型的设计是合理的．
The channel flow and groundwater flow are coupled by the flux through the river boundary.The extended Saint-Venant equations are used to describe channel flow and the finite difference are chosen as the numerical method.The groundwater could be 2-D or 3-D and the finite element solution is used.These two models are coupled by the theoretical numerical way.The coupled model is tested by a designed hydrological basin and the calculation results show that the model is reasonable.
出处
《水利学报》
EI
CSCD
北大核心
1998年第4期43-47,共5页
Journal of Hydraulic Engineering
关键词
河道水流
地下水流
耦合模型
水文学
水流模型
channel flow, groundwater flow, coupling model, finite difference, finite element method.
