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Digital Simulation of an Outwash Aquifer
Author(s) -
Lin Chang L.
Publication year - 1973
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1973.tb02963.x
Subject(s) - aquifer , aquifer test , geology , groundwater recharge , cone of depression , artesian aquifer , hydrology (agriculture) , groundwater , geotechnical engineering
A digital model has been developed to simulate the ground‐water flow through a confined aquifer discretized by a nonuniform mesh, using the noniterative alternating direction implicit method. The model results were checked closely with the analytical Theis solution for a homogeneous, isotropic aquifer. The use of the model will result in the following advantages: (1) a reduction in computer core storage and execution time requirements, (2) a closer and better replica of the aquifer boundaries, and (3) a freedom to focus on concentrated areas of interests in the aquifer system. The model was applied as a test case to the isolated sand and gravel aquifer at Elmsvale, Nova Scotia, Canada. With the superposing Musquodoboit River providing a source of recharge to the system, the Elmsvale aquifer would reach an equilibrium after 51 days of continuous pumping at a rate of 0.670 cubic feet per second. Available information suggests that the ground‐water resources potential in the Musquodoboit River Valley is more than sufficient to meet the demand of the valley in the foreseeable future.