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A finite-element model for simulation of two-dimensional steady-state ground-water flow in confined aquifers

Open-File Report 90-187

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Abstract

A computer program based on the Galerkin finite-element method was developed to simulate two-dimensional steady-state ground-water flow in either isotropic or anisotropic confined aquifers. The program may also be used for unconfined aquifers of constant saturated thickness. Constant head, constant flux, and head-dependent flux boundary conditions can be specified in order to approximate a variety of natural conditions, such as a river or lake boundary, and pumping well. The computer program was developed for the preliminary simulation of ground-water flow in the Edwards-Trinity Regional aquifer system as part of the Regional Aquifer-Systems Analysis Program. Results of the program compare well to analytical solutions and simulations .from published finite-difference models. A concise discussion of the Galerkin method is presented along with a description of the program. Provided in the Supplemental Data section are a listing of the computer program, definitions of selected program variables, and several examples of data input and output used in verifying the accuracy of the program.

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
A finite-element model for simulation of two-dimensional steady-state ground-water flow in confined aquifers
Series title:
Open-File Report
Series number:
90-187
Year Published:
1990
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Austin, TX
Contributing office(s):
Texas Water Science Center
Description:
iv, 77 p.
Online Only (Y/N):
N
Additional Online Files (Y/N):
N