ArticleProceedings of the National Academy of Sciences of the United States of America2018
Suppressing viscous fingering in structured porous media.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed.
- Magneto-Acoustic Field-Induced Unstable Interface of Magnetic Microswarm.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Triggering interfacial instabilities during forced imbibition by adjusting the aspect ratio in depth-variable microfluidic porous media.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Suppressing Viscous Fingering in Porous Media with Wetting Gradient.Materials (Basel, Switzerland) · 2023Article
- Effects of the Pore Morphology on Multiphase Fluid Displacement in Porous Media-A High-Resolution Modeling Investigation.ACS omega · 2023Article
- Nanofluid Formulations Based on Two-Dimensional Nanoparticles, Their Performance, and Potential Application as Water-Based Drilling Fluids.ACS omega · 2022Review
- Microfluidic Study of the Effect of Nanosuspensions on Enhanced Oil Recovery.Nanomaterials (Basel, Switzerland) · 2022Article
- Convective meniscus splitting of polysaccharide microparticles on various surfaces.Scientific reports · 2021Article
- Dynamics of fluid displacement in mixed-wet porous media.Proceedings. Mathematical, physical, and engineering sciences · 2020Article
- Active control of viscous fingering using electric fields.Nature communications · 2019Article
- Evidence for a universal saturation profile for radial viscous fingers.Scientific reports · 2019Article
- Pore-scale characteristics of multiphase flow in heterogeneous porous media using the lattice Boltzmann method.Scientific reports · 2019Article
- Pore geometry control of apparent wetting in porous media.Scientific reports · 2018Article
- Rapid Laser Manufacturing of Microfluidic Devices from Glass Substrates.Micromachines · 2018Article
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Authors and funding
8 authors.
Funding
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Abstract
Finger-like protrusions that form along fluid-fluid displacement fronts in porous media are often excited by hydrodynamic instability when low-viscosity fluids displace high-viscosity resident fluids. Such interfacial instabilities are undesirable in many natural and engineered displacement processes. We report a phenomenon whereby gradual and monotonic variation of pore sizes along the front path suppresses viscous fingering during immiscible displacement, that seemingly contradicts conventional expectation of enhanced instability with pore size variability. Experiments and pore-scale numerical simulations were combined with an analytical model for the characteristics of displacement front morphology as a function of the pore size gradient. Our results suggest that the gradual reduction of pore sizes act to restrain viscous fingering for a predictable range of flow conditions (as anticipated by gradient percolation theory). The study provides insights into ways for suppressing unwanted interfacial instabilities in porous media, and provides design principles for new engineered porous media such as exchange columns, fabric, paper, and membranes with respect to their desired immiscible displacement behavior.
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