Tracer Dispersion in Porous Media with Spatial Correlations

Details Tracer Dispersion in Porous Media with Spatial Correlations Tracer Dispersion in Porous Media with Spatial Correlations

1998-09-30

arxiv.org/abs/cond-mat/9809427v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 6 figures, http://polymer.bu.edu/~hmakse/Home.html

Scientific paper

We analyze the transport properties of a neutral tracer in a carrier fluid flowing through percolation-like porous media with spatial correlations. We model convection in the mass transport process using the velocity field obtained by the numerical solution of the Navier-Stokes and continuity equations in the pore space. We show that the resulting statistical properties of the tracer can be approximated by a Levy walk model, which is a consequence of the broad distribution of velocities plus the existence of spatial correlations in the porous medium.

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