Non-classical regimes of colloid-facilitated impurity transport in statistically homogeneous double porosity media

V.A. Kutsepalov and L.V. Matveev

Chaos, Solitons & Fractals, 2015, vol. 81, issue PB, 480-486

Abstract: In the context of impurity transport study it is shown how complexity of the system leads to emergence of anomalous transport regimes, moreover the power-law behavior of which changes with time. Specifically, a model of nonequillibrium colloid-facilitated transport in statistically homogeneous double porosity media is presented and possible transport regimes are simulated. Depending on the medium and colloids characteristics different sequences of transport regimes can realize. Temporal interval exists where anomalous transport regimes (sub-diffusion and quasi-diffusion) occur. At asymptotically large times the transport is described by the classical advection-diffusion with modified parameters.

Keywords: Dual porosity media; Colloid-facilitated transport; Power-law behavior; Anomalous transport regimes (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:81:y:2015:i:pb:p:480-486

DOI: 10.1016/j.chaos.2015.07.024

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