Assignment of boundary conditions in embedded ground water flow models
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Abstract
Many small-scale ground water models are too small to incorporate distant aquifer boundaries. If a larger-scale model exists for the area of interest, flow and head values can be specified for boundaries in the smaller-scale model using values from the larger-scale model. Flow components along rows and columns of a large-scale block-centered finite-difference model can be interpolated to compute horizontal flow across any segment of a perimeter of a small-scale model. Head at cell centers of the larger-scale model can be interpolated to compute head at points on a model perimeter. Simple linear interpolation is proposed for horizontal interpolation of horizontal-flow components. Bilinear interpolation is proposed for horizontal interpolation of head values. The methods of interpolation provided satisfactory boundary conditions in tests using models of hypothetical aquifers.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Assignment of boundary conditions in embedded ground water flow models |
| Series title | Groundwater |
| DOI | 10.1111/j.1745-6584.1998.tb02836.x |
| Volume | 36 |
| Issue | 4 |
| Year Published | 1998 |
| Language | English |
| Publisher | National Groundwater Association |
| Description | 5 p. |
| First page | 621 |
| Last page | 625 |
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