MSCA project at Université de Rennes 1

The aim of UnsatPorMix is to elucidate the impact of structural pore-scale heterogeneity on solute spreading, mixing, and reaction rates during unsaturated flow, through the combination of micromodel experiments and numerical model simulations.



Our experimental setup is based on a transparent flow cell containing a porous medium sample. We use a fluorescent conservative tracer as the solute and track its spreading and mixing during the flow experiment, by taking monochrome images.
We fabricate porous medium samples from PDMS, and we design them as an array of round pillars with varying diameters, providing a heterogeneous flow field.
We inject air and liquid simultaneously to create a connected liquid distribution pattern in the flow cell, to allow the spreading and mixing of the tracer.



Dr. Yves Méheust and Dr. Tanguy Le Borgne, Géoscience Rennes, Université de Rennes 1



This work is funded by the Marie Skłodowska-Curie Actions project no. 843594