Continuum stochastic modeling of flow and transport in a crystalline rock mass
PublisherThe University of Arizona.
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AbstractStochastic continuum modeling of flow and transport was conducted for a fractured crystalline rock mass at Fanay-Augeres in France. Two dimensional models were used in conjunction with hydraulic conductivity, piezometric head, and tracer test data. The boundary conditions were established by ordinary kriging. One hundred realizations of hydraulic conductivity were generated conditionally by sequential indicator simulation, and flow was computed numerically for each realization. One realization that gave the beast fit to measured flow rate into the experimental drift at the site, and to measured head data, was selected for the analysis of transport. Porosity and dispersivity values were determined by calibration against selected tracer test data. The calibrated model was then validated by successfully predicting the peak arrival time as well as 50% and 25% breakthrough durations of other tracers. We conclude that the continuum stochastic approach is well suited for the interpretation and simulation of hydraulic and tracer data at the site.
Degree ProgramGraduate College
Hydrology and Water Resources