摘要
近十几年来,科学技术的发展为水流运动的数学模型研究提供了有利条件,并出现了大批商用软件。HEC-RAS和MIKE11作为最常用的一维水流模型商用计算软件,被广泛用于计算不同水文条件、工程前后河段的水流运动,并均有较好的计算结果。然而,两种软件从模型假设、建立到运行等方面存在着许多差异。本文着重以HEC-RAS和MIKE11对河道糙率的不同计算方法为出发点,利用赣江外洲至南昌段实测地形和水文资料进行计算,然后对计算结果进行比较分析,得到两种软件的联系与区别。
In recent years,with the development of numerical modeling technologies for river flows,there are many commercial softwares,including HEC-RAS and MIKE11.These two most popular softwares are used widely in calculating water flows in different hydrologic conditions and work well generally.However,in these two softwares there are many different assumptions.This paper is to study the significant differences of the model methods about the Manning roughness factor（n）.Flow computation and modeling comparison are applied to the Nanchang Reach of the Ganjiang River in order to obtain the relatively accurate results and the differences by using the HEC-RAS and MIKE11.
出处
《泥沙研究》
CSCD
北大核心
2011年第6期41-45,共5页
Journal of Sediment Research
基金
水利部公益性行业科研专项经费项目(200901005)
教育部博士点基金(200802940001)
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)
