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arXiv · 2012.15624

Flow through time-evolving porous media: swelling and erosion

André F. V. Matias·Rodrigo C. V. Coelho·José S. Andrade Jr.·Nuno A. M. Araújo
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Abstract

The flow through a porous medium strongly depends on the boundary conditions, very often assumed to be static. Here, we consider changes in the medium due to swelling and erosion and extend existing Lattice-Boltzmann models to include both. We study two boundary conditions: a constant pressure drop and a constant flow rate. For a constant flow rate, the steady state depends solely on the erosion dynamics while for a constant pressure drop it depends also on the timescale of swelling. We analyze the competition between swelling and erosion and identify a transition between regimes where either swelling or erosion dominate.

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BibTeXRIS

André F. V. Matias, Rodrigo C. V. Coelho, José S. Andrade Jr., Nuno A. M. Araújo. 2020-12-31. Flow through time-evolving porous media: swelling and erosion. https://doi.org/10.1016/j.jocs.2021.101360

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