Downscaling: A complement to homogenization
article
A groundwater flow model based on a specified hydraulic conductivity field in the modeling domain has a unique solution only if either the head or the normal flux component is specified on the boundary. On the other hand, specification of both head and flux as boundary conditions may be used to determine the conductivity field, or at least improve an initial estimate of it. The specified head and flux data may be obtained from measurements on the boundary, including the wells. We have presented a relatively simple, but instructive approach: the Double Constraint (DC) method. The method is exemplified in the context of upscaling and its inverse: downscaling. The DC method is not only instructive, but also easy to implement because it is based on existing groundwater modeling software. The exemplifications shown in this paper relate to downscaling and demonstrate that the DC method has practical relevance. © 2008 Institute for Scientific Computing and Information.
TNO Identifier
241146
ISSN
17055105
Source
International Journal of Numerical Analysis and Modeling, 5(SUPPL.), pp. 157-170.
Pages
157-170
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