摘要
由于天然河流复杂水力特性 ,传统水面曲线计算存在诸多不足。本文从非均匀流能量方程入手 ,推演出了以水深为变量 ,成果精确且操作简便的水面曲线计算的迭代形式 ,进而对迭代收敛性进行了简要分析 。
Because of the complicated hydraulic characteristics in natural river,there are some disadvantages in traditional methods of water surface profile.In this paper,based on the energy equation of non uniform flow,the iterative computational method which regards depth as variable has been provided.High precision and convenience are expected in this method.Furthermore,the author has simply analyzed the astringency of iterative formula,and has quantificationally compare the deviation of computing results according to different formulas about modulus of flow combined with example.
出处
《电力勘测设计》
2002年第3期54-58,共5页
Electric Power Survey & Design
关键词
恒定非均匀流
流量模数
收敛性
等效断面
steady nonuniform flow
modulus of flow
astringency
equivalent profile
