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Creator:: Haggerty, Roy, Harvey, Charles F., von Schwerin, Claudius Freiherr, and Meigs, Lucy C.
Abstract:: Estimates of mass transfer timescales from 316 solute transport experiments reported in 35 publications are compared to the pore-water velocities and residence times, as well as the experimental durations. New tracer experiments were also conducted in columns of different lengths so that the velocity and the advective residence time could...
Resource Type:: Article
Full Text:: . Harvey,2 Claudius Freiherr von Schwerin,1,3 and Lucy C. Meigs4 Received 13 September 2002; revised 26

Creator:: Peszynska, Malgorzata, Showalter, Ralph E., and Yi, Son -Young
Abstract:: In this paper, we consider an upscaled model describing the multiscale flow of a single-phase incompressible fluid and transport of a dissolved chemical by advection and diffusion through a heterogeneous porous medium. Unlike traditional homogenization or volume averaging techniques, we do not assume a good separation of scales. The new...
Resource Type:: Article
Full Text:: stability analysis of our numerical methods for the upscaled model. First, we perform von-Neumann analysis

Creator:: Peszyńska, Malgorzata and Showalter, Ralph E.
Abstract:: An upscaled elliptic-parabolic system of partial differential equations describing the multiscale flow of a single-phase incompressible fluid and transport of a dissolved chemical by advection and diffusion through a heterogeneous porous medium is developed without the usual assumptions of scale separation. After a review of homogenization results for the traditional...
Resource Type:: Article

Creator:: Davit, Y., Wood, B. D., Debenest, G., and Quintard, M.
Abstract:: Abstract In this work, we study the transient behavior of homogenized models for solute transport in two-region porous media. We focus on the following three models: (1) a time nonlocal, two-equation model (2eq-nlt). This model does not rely on time constraints and, therefore, is particularly useful in the short-time regime,...
Resource Type:: Article

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