A NEW METHOD IN GROUNDWATER FLOW MODELING  

作　　者：MA Xiu-yuan LI Shu-guang ZHU Wei-shen 

机构地区：[1]School of Civil Engineering, Shandong University, Jinan 250061, China [2]Department of Civil and Environmental Engineering, Michigan State University, East Lansing, Michigan 48834,USA

出　　处：《Journal of Hydrodynamics》2009年第2期245-254,共10页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the National Science Fund for Distinguished Young Scholars(Grant No.50625927).

摘　　要：One of the challenges in groundwater modeling is the prediction of hydraulic head related to local stress fluctuations with a regional scale model. Typical applications of numerical models require extensive field information for input data and for calibration If we can model the change directly, we may not have to know all the modeling parameters because sometimes the changes only depend on fewer parameters. In this article, we present an improved methodology for groundwater modeling related to local stress fluctuations using a perturbation approach. Our results demonstrate that this approach is capable of matching an exact solution for drawdown in both confined and unconfined aquifers. The results suggest that this perturbation method can provide an accurate representation of head in a large-scale hydrogeological system.One of the challenges in groundwater modeling is the prediction of hydraulic head related to local stress fluctuations with a regional scale model. Typical applications of numerical models require extensive field information for input data and for calibration If we can model the change directly, we may not have to know all the modeling parameters because sometimes the changes only depend on fewer parameters. In this article, we present an improved methodology for groundwater modeling related to local stress fluctuations using a perturbation approach. Our results demonstrate that this approach is capable of matching an exact solution for drawdown in both confined and unconfined aquifers. The results suggest that this perturbation method can provide an accurate representation of head in a large-scale hydrogeological system.

关 键 词：groundwater modeling local stress fluctuations perturbation method iteration scheme 

分 类 号：P641.2[天文地球—地质矿产勘探] TH49[天文地球—地质学]