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Finite-difference grid for a doublet well in an anisotropic aquifer.

Ground Water

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Abstract

The US Geological Survey is modeling hydraulic flow and thermal-energy transport at a 2-well injection/withdrawal system in St. Paul, Minnesota. The design of the finite-difference model grid for the doublet-well system is complicated because the aquifer is anisotropic and the principal axes of transmissivity are not aligned with the axis between the 2 wells. An analytical solution for flow in a doublet-well system in an infinite anisotropic aquifer was employed in the design of a grid with artificial boundaries placed in the midst of the flow field. Flow-net analysis was used to determined water flux across an equipotential boundary and to assign approximate flux values at model boundaries. This enabled the simulation of the effects of the entire flow field, although only a small part was modeled.-from Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Finite-difference grid for a doublet well in an anisotropic aquifer.
Series title:
Ground Water
Volume
24
Issue:
4
Year Published:
1986
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Ground Water
First page:
490
Last page:
496
Number of Pages:
7