Contaminant migration from an axisymmetric source in a porous medium

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Abstract

This paper examines the problem of the nonreactive advective transport of a contaminant that is introduced at the boundary of a three-dimensional cavity contained in a fluid-saturated nondeformable porous medium of infinite extent. The advective Darcy flow is caused by a hydraulic potential maintained at a constant value at the boundary of the three-dimensional cavity. In order to develop a generalized solution to the problem the three-dimensional cavity region is modeled as having either a prolate or an oblate shape. Analytical results are developed for the time- and space-dependent distribution of contaminant concentration in the porous medium, which can also exhibit natural attenuation. The exact closed-form analytical results are also capable of providing solutions to advective transport problems related to spherical, flat disc-shaped and elongated needle-shaped cavities.

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APA

Selvadurai, A. P. S. (2003). Contaminant migration from an axisymmetric source in a porous medium. Water Resources Research, 39(8). https://doi.org/10.1029/2002WR001442

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