Speaker
Description
Mixing and clogging phenomena in porous media are of major interest in both industry and agronomy. While numerous studies have investigated the macroscopic influence of porous microstructure on flow, the exact flow paths have long remained inaccessible due to the opacity of most natural media. In this work, we use X-ray 3D tomographic data to fabricate transparent resin replicas of porous structures through 3D printing, thus allowing for direct visualization techniques within real porous media microstructures. By flowing an index-matched, tracer-seeded liquid through these transparent models, we directly visualize streamlines, to characterize the flow kinematic and quantify how subtle microstructural changes affect flow behavior. Such characterization will then allow to investigate the transport properties of the medium, namely the mixing & the dispersion process, and to decipher the effect of microstructural heterogeneities.
| Country | France |
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