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DETAILED INFORMATION

ESTIMATION OF HYDRAULIC CONDUCTIVITY OF AN AREA USING STOCHASTIC FINITE ELEMENT METHOD Author : Mas Agus Mardyanto, Erman Evgin, Department of Civil Engineering, University of Ottawa, Ottawa, ON, Canada

WHAT IS THIS DOCUMENT ABOUT? :

In this paper a stochastic finite element method is used to solve an inverse problem of groundwater flow.
The analysis provides the log hydraulic conductivity values of an aquifer. In this method, the adjoint finite element
equation is utilized for the solution of a transient groundwater flow problem. The results obtained from the maximum
likelihood estimate analysis are used as input to obtain the hydraulic conductivity values of the area using the cokriging
method. A distribution of ‘true’ values of hydraulic conductivity is used to verify the method. Comparisons show that the
method can estimate the hydraulic conductivity distribution quite well although the predicted and “true” values are not
identical. In addition, a case study, which is based on field data from an aquifer, is used to validate the method. These
calculations show that the distribution of hydraulic conductivity in a real aquifer can also be estimated

Keywords : hydraulic conductivity stochastic finite element method
file credit : Mas Agus Mardyanto, Erman Evgin, Department of Civil Engineering, University of Ottawa, Ottawa, ON, Canada
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