摘要
本文用摄动法求解明渠变量流的基本微分方程,得到了一级近似下水面曲线的解析表达式。当G(G的定义见式(2.10))值很小时,本文的一级近似解具有很高的精确度。
In this paper, using perterbation method, the author solves the basic differential equations of open-channel alteration discharge flow, and obtains the first-order approximate analytical formula for calculating water depth When G (see equations(2.10) ) is small , the first-order approximate solution has higher precision.
出处
《四川工业学院学报》
1991年第3期190-197,共8页
Journal of Sichuan University of Science and Technology
关键词
明渠
变量流
水面曲线
摄动法
Ppen-channel, Alteration discharge flow, Water surface
