摘要
在已有研究的基础上,建立了适合复杂区域的河网非恒定流水沙数学模型。建立过程中考虑到计算精度和计算速度的要求,水流求解采用汊点分组方法,同时本模型选用了较符合河网泥沙运动的汊点分沙模式。最后通过长江中下游长河段的水沙运动模拟表明,建立的河网水沙数学模型能够满足实际工程需要。
Based on the existing studies, the unsteady flow anti sediment model of river networks is presented in this paper. A junction group method, which is based on gradation method, is applied to solve the flow matrix equations. And the reas,mable style of sediment diversion at the junction nodes is also adopted. It is shown by the field simulation in the middle and lower Yangtze River that this model can be applied in wide practice and is worth recommending.
出处
《水科学与工程技术》
2006年第6期1-4,共4页
Water Sciences and Engineering Technology
基金
国家自然科学基金资助项目(编号:50509020)
关键词
河网
非恒定流
水沙数学模型
河床冲淤
river networks
unsteady flow
flow and sediment model
erosion and deposition
