| 地下水污染物的有限差分模型的修正 |
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| 引用本文： | 王其同,胡宝柱,安书全.地下水污染物的有限差分模型的修正[J].地球与环境,2007,35(4):380-382. |
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| 作者姓名： | 王其同 胡宝柱 安书全 |
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| 作者单位： | 1. 华北水利水电学院水利学院,河南,郑州,450008
2. 黄河水利科学研究院,河南,郑州,450003 |
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| 摘 要： | 为了更好地研究地下水污染问题,在泰勒级数分析的基础上,对一维地下水污染的模型求解过程中有限差分法的截断误差进行了修正,得到了修正后的有限差分解,并对差分格式的稳定性进行了分析。结果表明,没有修正的截断误差是不能忽略的。本文的研究为河流水质污染的防治和预测提供了一种科学依据。
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| 关 键 词： | 河流水质预测 有限差分 截断误差 误差修正 |
| 文章编号： | 1672-9250（2007）04-0380-03 |
| 收稿时间： | 2007-06-20 |
| 修稿时间： | 2007-08-27 |
CORRECED SOLUTION TO THE FINITE-DIFFERENCE MODEL OF GROUNDWATER POLLUTANTS |
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| WANG Qi-tong,HU Bao-zhu,AN Shu-quan.CORRECED SOLUTION TO THE FINITE-DIFFERENCE MODEL OF GROUNDWATER POLLUTANTS[J].Earth and Environment,2007,35(4):380-382. |
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| Authors: | WANG Qi-tong HU Bao-zhu AN Shu-quan |
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| Abstract: | In order to well understand the problem of groundwater pollution, truncation errors associated with finite-difference solution of one-dimensional groundwater pollution are corrected based on the Taylor analysis. Thus, a corrected finite difference solution is obtained. The criteria for the stability of finite-difference solutions are derived using a matrix method. Comparison with the analytical solution and uncorrected solution, uncorrected truncation errors can not be negligible This study provides a more reasonable approach to the prediction and prevention of river pollution. |
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| Keywords: | groundwater pollution truncation error finite difference correction |
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