乌江银盘航电枢纽明渠通航方案数值模拟  

Numerical simulation on navigation condition in open diversion channel of Yingpan Hydro-junction Project in Wujiang River

作　　者：杨忠超[1] 文岑[1] 许光祥[1] 陈明栋[1] 杨斌[1] 

机构地区：[1]重庆交通大学内河航道整治技术交通行业重点实验室,重庆400074

出　　处：《水利水运工程学报》2009年第3期59-66,共8页Hydro-Science and Engineering

基　　金：交通部西部交通建设资助项目(200532800030);重庆市教委基金资助项目(KJ050408)

摘　　要：采用平均水深的二维有限元法建立了乌江银盘枢纽导流明渠水流数学模型,计算了多级流量下的明渠内水流条件.根据乌江代表船型确定了船舶自航的流速与比降的组合标准,依此标准绘制了明渠各级流量的适航区域.采用复式断面法对导流明渠进行3个方案的优化,得到了较优的明渠断面形式,调整明渠内水流流速与比降分布,改善了导流明渠的通航条件,提高了导流明渠的通航流量,保证了通航安全.A Flow numerical model of the open diversion channel of the Yingpan Hydro-junction Project in the Wujiang River is established By means of two-dimension finite element method, and flow conditions under a varietiy of flux in open diversion channel are computed. Based on typical watercraft in the Wujiang River, the combined standard between velocity and water surface gradients under which watercraft can be steered by itself power is confirmed. The navigable scope under many variety of flux in open diversion channel is plated according to the standard. Using complex Section method, three optimizing designs are researched and the optimum section is achieved, and the velocity and water surface gradients in open diversion channel are redistributed, and thereby the navigation condition is improved, the navigation flow is increased and the navigation safetyis ensured.

关 键 词：导流明渠 通航条件 数值模拟 流速分布 

分 类 号：TV551.11[水利工程—水利水电工程] TV741