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| 尾闾段河网一维水流数学模型应用研究 |
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戴文鸿1,张云2,高嵩2,李开杰2,王得祥2
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1. 水文水资源与水利工程科学国家重点实验室,江苏南京210098;河海大学水利水电学院,江苏南京210098;河海大学水资源高效利用与工程安全国家工程研究中心,江苏南京210098
2. 河海大学水利水电学院,江苏南京,210098
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| 摘要: |
| 尾闾段河网常常是连接上下游的水上通航要道,且上游洪水需要通过尾闾段河网下泄,这就使得尾闾段河网水流运动的研究成为非常重要和十分必要的课题之一.在对尾闾段河网水流的运动特点及一维河网计算的研究现状评述的基础上,选用自编程序“河网水动力模型”和商用软件HEC-RAS分别建立一维河网水流模型,应用于赣江尾闾段,针对洪水流量、中水流量和枯水流量分别计算沿程水位.在洪水流量下,根据计算所得的水面线,找出各主要站点的水位作为警戒水位,当该站点水位有接近警戒水位的趋势时,提请有关部门应做好防洪工作.在中水期,主要考虑造床流量的影响.在枯水期,根据计算得出的水位,得到各主要站点的最低通航水位,为枯水期能否顺利通航提供依据. |
| 关键词: 一维水流 数学模型 HEC-RAS 尾闾段河网 |
| DOI： |
| 分类号:U612.1 TV147 |
| 基金项目:水利部公益性行业科研专项经费项目(200901005); 江苏高校优势学科建设工程资助项目(水利工程); 中央高校基本科研业务费专项资金资助(2009B02214) |
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| Application of 1-D mathematical model of lower river networks |
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DAI Wen-hong1,ZHANG Yun2,GAO Song2,LI Kai-jie2,WANG De-xiang2
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DAI Wen-hong1,2,3,ZHANG Yun2,GAO Song2,LI Kai-jie2,WANG De-xiang2(1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing 210098,China,2.College of Water Conservancy & Hydropower Engineering,Hohai University,3.National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety,China)
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| Abstract: |
| The lower river networks often connect the upstream and downstream of navigation routes,and the river flood discharges have to pass from the upstream to the river networks.This makes the research on the flow in lower river networks one of the most important and necessary researches.In this paper,the authors first review and summarize the methods for the river networks;then,apply the self established 1-D hydrodynamic program,namely hydrodynamic model for river networks,and the 1-D commercial software HEC-RAS... |
| Key words: one-dimensional flow mathematical model HEC-RAS lower river networks |
