Détermination expérimentale des paramètres équivalents d'un milieu poreux hétérogène en écoulements uniforme ou radial |
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| Authors: | Charles Danquigny Philippe Ackerer |
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| Institution: | Institut de mécanique des fluides et des solides, UMR 7507, université Louis-Pasteur–CNRS, 2, rue Boussingault, 67000 Strasbourg, France |
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| Abstract: | Tracer tests are carried out in a heterogeneous porous medium that has a 3D correlated random distribution of the permeabilities. The fitting of numerical models provides the values of equivalent permeability and macrodispersivity characterizing a 2D homogeneous horizontal medium. Different flow configurations are studied: uniform, radial and pump and treat (doublet). The fitted parameter sets are independent of the flow type, except for the doublet. They are greater than the values predicted by stochastic theories, due to the small number of correlation lengths explored by the tracer and the limited extension of the experimental set-up. To cite this article: C. Danquigny, P. Ackerer, C. R. Geoscience 337 (2005). |
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| Keywords: | Milieux poreux Paramètres équivalents Expériences Théories stochastiques Porous media Equivalent parameters Experiments Stochastic theories |
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