摘要
为了准确地研究低渗介质中地下水污染问题,在充分考虑地下水在低渗介质中渗流时存在启动压力梯度和动边界的基础上,建立低渗介质中地下水污染和地下水渗流的耦合数学模型。采用有限差分法对耦合模型进行数值求解,并分析了启动压力梯度对地下水污染浓度的影响。结果表明启动压力梯度对地下水污染浓度的分布有着重要的影响,
In order to study the problem of groundwater pollution, on the basis of considering starting pressure gradient and moving boundary in low permeability porous, authors built the coupling mathematic model of groundwater pollution and seepage. With finite difference method, and the influence of starting pressure gradient on distribution of groundwater pollution concentration is analyzed. The results indicate that starting pressure gradient has an important influence on the groundwater pollution. It can not be ignored when the issues of groundwater pollution in low permeability porous medium is studied.
出处
《辽宁工程技术大学学报（自然科学版）》
EI
CAS
北大核心
2005年第1期136-137,共2页
Journal of Liaoning Technical University (Natural Science)
基金
河北省科学技术研究与发展指导性计划课题(03220702)
关键词
地下水污染
启动压力梯度
动边界
数值模拟
低渗透
groundwater pollution
starting pressure gradient
moving boundary
numerical simulation
low permeability
