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Three-Dimensional Numerical Simulation of Impacts of Fault Existence on Groundwater Flow and Salt Transport in a Coastal Aquifer, Buan, Korea  

Park, Ju-Hyun (School of Earth and Environmental Sciences, Seoul National University)
Kihm, Jung-Hwi (School of Earth and Environmental Sciences, Seoul National University)
Kim, Han-Tae (Department of Water Resources Research, Korea Institute of Construction Technology)
Kim, Jun-Mo (School of Earth and Environmental Sciences, Seoul National University)
Publication Information
Journal of Soil and Groundwater Environment / v.13, no.5, 2008 , pp. 33-46 More about this Journal
Abstract
A series of three-dimensional numerical simulations using a generalized multidimensional hydrodynamic dispersion numerical model is performed to simulate effectively and to evaluate quantitatively impacts of fault existence on densitydependent groundwater flow and salt transport in coastal aquifer systems. A series of steady-state numerical simulations with calibration is performed first for an actual coastal aquifer system which contains a major fault. A series of steadystate numerical simulations is then performed for a corresponding coastal aquifer system which does not have such a major fault. Finally, the results of both numerical simulations are compared with each other and analyzed. The results of the numerical simulations show that the major fault produces hydrogeologically significant heterogeneity and true anisotropy in the actual coastal aquifer system, and density-dependent groundwater flow, salt transport, and seawater intrusion patterns in the coastal aquifer systems are intensively and extensively dependent upon the existence or absence of such a major fault. Especially, the major fault may act as a pathway for groundwater flow and salt transport along the direction parallel to its plane, while it may also behave as a barrier against groundwater flow and salt transport along the direction perpendicular to its plane.
Keywords
Coastal aquifer; Fault; Groundwater flow; Salt transport; Seawater intrusion; Numerical simulation;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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