摘要
应用推理公式计算小流域设计洪水常采用迭代法求取洪峰流量.应用VB高级编程工具将牛顿法和弦截法这2种常用的迭代法进行了程序化,并应用于小流域设计洪水计算.计算结果表明,牛顿迭代法计算成果迭代次数少,收敛速度快,是小流域设计洪水迭代求解法中较好的选择.
At present, iteration methods are always used when inference formula method is applied to the calculation of design flood in small basin. Newton＇s method and secant method are two common iteration methods. In this paper, the two methods are programmed based on Visual Basic language, and applied to the calculation of design flood in small basin. The results show that Newton＇s method has the results of fewer iterations, faster convergence speed, and it is a better choice of the iterative calculation methods for the design flood in small basin.
出处
《华北水利水电学院学报》
2011年第4期38-40,共3页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
设计洪水
牛顿法
弦截法
VB
design flood
newton method
secant method
VB
