Retrieval of Spacewise Dependent Hydraulic Properties of Anisotropic Rocks from Transient Flow Experiments |
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| Authors: | Mustata R Harris SD Elliott L Ingham DB Lesnic D |
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| Institution: | (1) Department of Applied Mathematics, University of Leeds, Leeds, LS2 9JT, U.K;(2) Rock Deformation Research, School of Earth Sciences, University of Leeds, Leeds, LS2 9JT, U.K |
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| Abstract: | An inverse finite-difference method (FDM) is developed to characterise the spatially dependent components of the hydraulic conductivity tensor together with the specific storage for anisotropic materials, using  experimental data generated from the direct FDM. This simulated surface data serves as additional information to a genetic algorithm (GA) optimisation procedure, using a modified least squares functional, that minimises the difference between the experimental data and the FDM-predicted boundary pressure and/or average hydraulic flux measurements based on current hydraulic conductivity tensor and specific storage estimates. |
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| Keywords: | spacewise hydraulic properties anisotropic rocks transient experiments genetic algorithms |
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