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Ecoulements diphasiques en milieu poreux

par Bodiguel Hugues, Chabert Max, Colin Annie, Cottin Christophe, Cuenca Amandine - publié le , mis à jour le

Models of porous media made using microfabrication techniques (glass or PDMS) are used to study biphasic flows.

We observe a transition from capillary fingering to viscous flow when increasing the flow rate.

PNG - 68.7 ko
Examples of image sequences taken during the invasion. Top : Capillary fingering at small capillary numbers. Bottom : stable front at high capillary numbers.

Examples of image sequences taken during the invasion. Top : Capillary fingering at small capillary numbers. Bottom : stable front at high capillary numbers.

This transition could be accounted using pore network model simulations.

Related publications :

Drainage in two-dimensional porous media : From Capillary fingering two viscous flow