摘要
在边界拟合正交曲线坐标系下,运用同位网格模式和界面动量插值的条件建立了二维水流数学模型,采用天然河段的实测资料对模型进行了验证。运用该模型研究了长江中游弯曲型分汊河道分流区在不同流量情况下水流运动与挟沙力因子的变化规律,为研究三峡蓄水后对坝下游河道的影响提供了研究手段。
Under body-fitted orthogonal curvilinear coordinates sytem, a 2-D flow model is established by using non-staggered grid and momentum interpolation. The model is tested by measured data in natural reach. The variation law of water flow and sediment transport capacity factor are studied by this model under different discharges in the curved branching reach of the middle Yangtze River, It offers an approach for study of the impact of Three George Dam＇s impoundment on the downstream reach.
出处
《水力发电学报》
EI
CSCD
北大核心
2006年第3期49-52,57,共5页
Journal of Hydroelectric Engineering
基金
国家自然科学基金项目(50221903)
关键词
河流动力学
分汉河道
数值模拟
动量插值
river mechanics
branching reach
numerical simulation
momentum interpolation
