laboratoire de physique statistique
 
 
laboratoire de physique statistique

Publications

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PHYSICAL REVIEW APPLIED 


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P U B L I C A T I O N S



 
2014
Wetting Heterogeneities in Porous Media Control Flow Dissipation - Murison, Julie and Semin, Benoit and Baret, Jean-Christophe and Herminghaus, Stephan and Schroeter, Matthias and Brinkmann, Martin
PHYSICAL REVIEW APPLIED 2 (2014)

Abstract : Pressure-controlled displacement of an oil-water interface is studied in dense packings of functionalized glass beads with well-defined spatial wettability correlations. An enhanced dissipation is observed if the typical extension xi of the same-type wetting domains is smaller than the average bead diameter d. Three-dimensional imaging using x-ray microtomography shows that the frequencies n(s) of residual droplet volumes s for different xi collapse onto the same curve. This indicates that the additional dissipation for small xi is due to contact line pinning rather than an increase of capillary break-up and coalescence events.