吴堡-潼关河段非恒定流水沙输移模型  

Unsteady Flow and Sediment Transport Model in the Wubu-Tongguan Reach of Yellow River

作　　者：贺莉[1] 王云彬[2,3] 傅旭东[2] 季永清 

机构地区：[1]中国科学院地理科学与资源研究所陆地水循环及地表过程重点实验室,北京100101 [2]清华大学水沙科学与水利水电工程国家重点实验室,北京100084 [3]新疆维吾尔自治区水利厅,乌鲁木齐830000 [4]内蒙古自治区翁牛特旗水务局,内蒙古翁牛特旗024500

出　　处：《南水北调与水利科技》2012年第3期27-31,共5页South-to-North Water Transfers and Water Science & Technology

基　　金：水利部公益性行业科研专项经费项目(200901016);国家重点基础研究发展计划“973”计划课题(2011CB403305);“十二五”国家科技支撑计划课题资助(2012BAB02B02)

摘　　要：新情势下的潼关水沙预报需要认识吴堡-潼关河段的水沙传播规律。以吴堡-潼关河段为研究对象,建立了非恒定流不平衡输沙数学模型,模型考虑了壶口瀑布陡坎跌水特征和小北干流的宽浅游荡特征。对1977年、1986年、2009年汛期洪水传播过程的模拟表明,模型具有模拟吴堡-潼关河段洪水演进和不平衡输沙过程的能力。同时,小北干流河床变形和冲淤过程模拟需要进一步改进。The flow and sediment transport in the Wubu-Tongguan Reach of the Yellow River is needed to be investigated for the flow and sediment forecasting in this area. In this paper,an unsteady flow and non-equilibrium sediment transport mathematical model is developed for this reach, and the model considers the hydraulic drop in the scarp of the Hukou waterfall and the wide and shallow wandering channels downstream of the Longmen station. Based on the simulations of the flood transmission proces- ses during the flood season in 1977,1986, and 2009, the model is applicable to simulate the flood routing and non-equilibrium sediment transport in the Wubu-Tongguan Reach. Furthermore, the riverbed deformation and the fluvial processes in the wan- dering channels from Longmen to Tongguan need further investigations.

关 键 词：数学模型 有限体积法 吴堡-潼关河段 洪水演进 

分 类 号：TV122[水利工程—水文学及水资源]