摘要
Abstract
According to the characteristics of Xijiang River, considering the influence of flood, a one-dimensional unsteady flow of flood evolution model is established.The Saint Venant equations are discredited by use of the Preissmann four point eccentric implicit difference schemes and are solved by chasing method.Based on the measured data of the Xijiang River ( Datengxia -Gaoyao) , this model is verified by flood routing.The results show that the model can simulate the flow change process better, and the simulated values accord well with the measured values.It is verified that the model is reasonable and feasible.And it can be used to study the flood forecasting, the dry season water diversion etc.关键词
洪水演进/数值模拟/一维/西江干流Key words
flood routing/numerical simulation/one dimension/Xijiang River分类
建筑与水利
