Quasistatic fluid-fluid displacement in porous media: Invasion-percolation through a wetting transition
Autor: | Ruben Juanes, Alireza Rangriz Shokri, Stephen Talman, Rick Chalaturnyk, Christopher W. MacMinn, Benzhong Zhao, Keivan Khaleghi, Bauyrzhan K. Primkulov |
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Rok vydání: | 2018 |
Předmět: |
Fluid Flow and Transfer Processes
Materials science genetic structures Capillary action Quantitative Biology::Tissues and Organs Flow (psychology) Computational Mechanics 02 engineering and technology Mechanics 021001 nanoscience & nanotechnology 01 natural sciences Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Wetting transition Modeling and Simulation 0103 physical sciences Wetting 010306 general physics 0210 nano-technology Invasion percolation Porous medium Displacement (fluid) Quasistatic process |
Zdroj: | Physical Review Fluids. 3 |
ISSN: | 2469-990X |
DOI: | 10.1103/physrevfluids.3.104001 |
Popis: | We study the influence of wettability on the morphology of fluid-fluid displacement through analog porous media in the limit of vanishing flow rates. We introduce an invasion-percolation model that considers cooperative pore filling and corner-flow mechanisms and captures interface motion at the pore scale for all quasistatic flow regimes between strong drainage and strong imbibition. We validate the method against recent experimental observations of wetting transition in microfluidic cells patterned with circular posts and we use it to explore the sensitivity of fluid invasion to wettability heterogeneity, post spacing, and post height. Our model therefore extends the Cieplak-Robbins description of quasistatic fluid invasion by reproducing the wetting transition in strong imbibition, a feature that requires incorporating three-dimensional effects. |
Databáze: | OpenAIRE |
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