| 计算天然河流纵向弥散系数的一种新方法 |
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| 引用本文： | 刘伟霞.计算天然河流纵向弥散系数的一种新方法[J].哈尔滨建筑大学学报,1991(4). |
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| 作者姓名： | 刘伟霞 |
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| 作者单位： | 哈尔滨建筑工程学院数学教研室 |
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| 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.
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| 关 键 词： | 差分法 计算数学 数值计算 纵向弥散系数 |
A New Method of Computing the Longitudinal Dispersion Coefficient in Natural Rivers |
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| Liu Weixia.A New Method of Computing the Longitudinal Dispersion Coefficient in Natural Rivers[J].Journal of Harbin University of Civil Engineering and Architecture,1991(4). |
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| Authors: | Liu Weixia |
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| Abstract: | 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. |
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| Keywords: | difference methods computational mathematics numerical computation |
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