| 低渗透多孔介质中溶质运移的灰色数值模拟 |
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| 引用本文： | 朱长军,周继红,赵秀娟,李树文.低渗透多孔介质中溶质运移的灰色数值模拟[J].西安石油大学学报(自然科学版),2007,22(2):34-36. |
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| 作者姓名： | 朱长军 周继红 赵秀娟 李树文 |
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| 作者单位： | 1. 河北工程大学,城市建设学院,河北,邯郸,056038;河海大学,水资源环境学院,江苏,南京,210098
2. 河北工程大学,城市建设学院,河北,邯郸,056038 |
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| 摘 要： | 针对低渗介质中启动压力梯度难以确定的问题,将启动压力梯度等参数视为未确知变量,并以灰参数的形式表示,建立了低渗多孔介质中的地下水水质模拟的灰色数学模型.在数值求解过程中,对一维低渗介质中地下水水污染的灰色模型求解过程中有限差分法的截断误差进行了修正,得到了一种具有特殊结构的数值模型,并且给出了求解这类模型的灰色数值算法.通过实例表明,该方法是可行的,模拟结果是合理的.
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| 关 键 词： | 地下水污染 污染物运移 灰色数值模型 启动压力梯度 |
| 文章编号： | 1673-064X(2007)02-0034-03 |
| 修稿时间： | 2006-11-25 |
Gray numerical simulation of contaminant transport in low- permeability porous media |
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| ZHU Chang-Jun,ZHOU Ji-hong,ZHAO Xiu-juan,LI Shu-wen.Gray numerical simulation of contaminant transport in low- permeability porous media[J].Journal of Xian Shiyou University,2007,22(2):34-36. |
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| Authors: | ZHU Chang-Jun ZHOU Ji-hong ZHAO Xiu-juan LI Shu-wen |
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| Abstract: | It is difficult to determine the starting pressure gradient in low-permeability reservoirs.In accordance with this problem,a gray mathematical model for simulating the groundwater flow in low-permeability media is established,in which the starting pressure gradient is as a gray unknown variable.In the process of solving the 1D gray mathematical model,a special structural numerical model is obtained through the revision of the truncation errors of finite difference method,and the gray numerical algorithm for solving this kind of models is presented.A case shows that it is feasible and reliable to use this algorithm to simulate the contaminant transport of groundwater in low-permeability porous media. |
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| Keywords: | groundwater pollution contaminant transport gray numerical simulation starting pressure gradient |
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