含水层渗透系数空间变异性对地下水数值模拟的影响

被引：53

作者：

陈彦

吴吉春

机构：

[1] 南京大学地球科学系

来源：

水科学进展 | 2005年 / 04期

关键词：

随机理论; MonteCarlo模拟方法; 空间变异性; 地下水数值模拟; 含水层; 渗透系数;

D O I：

10.14042/j.cnki.32.1309.2005.04.002

中图分类号：

P641.2 [地下水动力学];

学科分类号：

摘要：

地下水数值模拟是目前定量研究地下水水量和水质的重要手段。使用基于随机理论的MonteCarlo方法来进行地下水数值模拟。这种方法能较好地考虑水文地质参数的空间变异性。主要将MonteCarlo方法和确定性模型模拟方法的模拟结果在渗透系数场、水头场、速度场和浓度场等方面进行了比较。结果表明:在模拟三维非均质含水层中的溶质运移问题时,充分考虑了含水层渗透系数空间变异性的MonteCarlo法比确定性方法更为有效,模拟精度提高了很多,且对模拟误差及误差来源有合理的数学解释。

引用

页码：482 / 487

页数：6

共 10 条

[1] Monte Carlo study of conservative transport in heterogeneous dual-porosity media. Huang H,Hassan A E,Hu B X. Journal of Hydronautics . 2003
[2] Solute flux approach to transport through spatially nonstationary flow in porous media. Zhang D,Andricevic R,Sun A Y,et al. Water Resources . 2000
[3] A Monte Carlo assessment flow and transport perturbation models. Hassan A E,Cushman J H,et al. Water Resources . 1998
[4] Stochastic modeling of groundwater flow by unconditional and conditional probabilities, 1, Conditional simulation and the direct problem. Dagan G. Water Resources . 1982
[5] A quasi-linear theory of non-Fickian and Fickian subsurface dispersion, 1, Theoretical analysis with application to isotropic media. Neuman S P,Zhang Y K. Water Resources . 1990
[6] A numerical method of moments for solute transport in a porous medium with multiscale physical and chemical heterogeneity. Wu J C,Hu B X,He C. Water Resources . 2004
[7] Comparision of geostatistical methods for estimating transmissivity using data in transmissivity and specific capacity. Ahmed S,Marsily G D. Water Resources . 1987
[8] Cross-correlated random field generation with the direct Fourier transform method. Robin M J L,Gutjahr A L,et al. Water Resources . 1993
[9] A natural gradient experiment on solute transport in a sand aquifer: spatial variability of hydraulic conductivity and its role in the dispersion process. Sudicky E A. Water Resources . 1986
[10] Application of nonstationary stochastic theory to solute transport in multi-scale geological media. Wu J C,Hu Bill X,Zhang Dongxiao. Journal of Hydronautics . 2003

← 1 →