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Groundwater Transport with Stochastic Retardation: Numerical Results

Author(s): Patrick O'Leary, Myron B. Allen, and Frederico Furtado Abstract: We examine the advection-diffusion equation with stochastic retardation governed by a random field R(x). For spatially uncorrelated retardation fields, Monte Carlo simulations indicate that spreading of the mean plume increases with standard deviation O-R. In this case, a perturbation-based "effective equation" predicts an average plume that agrees with the Monte Carlo simulations when O-R is not too large. When spatial correlation is significant, the effective equation is a nonlocal integrodifferential equation, and efficient numerical solution is problematic. 1 Introduction We examine one- dimensional transport of a groundwater contaminant undergoing reversible adsorption according to a linear equilibrium isotherm. For simplicity, we assume that the initial con... Pages: 7 Size: 550 kb Paper DOI: 10.2495/CMWR980321

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Download the Full Article This article is part of the WIT OpenView scheme and you can download the full text Adobe PDF article for FREE by clicking the 'Openview' icon to the right.