摘要
本文基于水质数学模型的基本方程,采用小扰动技术和有限差分的方法,给出了计算天然河流纵向弥散系数的一种新方法,并结合理论算例进行了数字模拟,得到了与理论模型十分吻合的结果.
In this paper,we present a new method of computing the longitudinal dispersioncoefficient in natural rivers by means of a small perturbation technique and a finitedifference method based on a fundamental equation of mathematical model of waterquality.We carry out the numerical simulation combined with the example of theo-retical arithmetic,and obtain the result which just coincides with the theoreticalmodel.
关键词
河流
差分法
弥散系数
计算
difference methods
computational mathematics
numerical computation
