摘要
基于Abbott六点中心隐式差分格式的河道一维非恒定水流模型和平底宽顶堰堰流公式计算堤防溃口流量过程,构建了根据非结构网格的有限体积法离散的二维水动力模型,并模拟了堤围内洪水过程,计算了变电站站址处溃堤设计水位,采用水量平衡法验证了二维水动力模型的计算结果。实例结果表明,水动力模型可为堤围内变电站的设计提供可靠的技术支持,供借鉴。
The levee break discharge process is calculated by using one-dimensional unsteady flow model based on centered 6-point Abbott implicit difference scheme and the weir formula.Based on unstructured grid finite volume method,two-dimensional hydrodynamic model is established to simulate flood process within the dike and calculate the design water level of substation site.And the method of water balance is used to verify the result of two-dimensional hydrodynamic model.The results show that the hydrodynamic mode...
出处
《水电能源科学》
北大核心
2010年第6期29-31,28,共4页
Water Resources and Power
关键词
溃堤洪水
数值模拟
一维非恒定水流模型
堰流公式
二维水动力模型
变电站
设计水位
levee break flood
numerical simulation
one-dimensional unsteady flow model
weir formula
two-dimensional hydrodynamic model
substation
design water level
