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Fluid Interfaces during Viscous-Dominated Primary Drainage in 2D Micromodels Using Pore-Scale SPH Simulations
Joint Authors
Sivanesapillai, Rakulan
Steeb, Holger
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-14
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
We perform pore-scale resolved direct numerical simulations of immiscible two-phase flow in porous media to study the evolution of fluid interfaces.
Using a Smoothed-Particle Hydrodynamics approach, we simulate saturation-controlled primary drainage in heterogeneous, partially wettable 2D porous microstructures.
While imaging the evolution of fluid interfaces near capillary equilibrium becomes more feasible as fast X-ray tomography techniques mature, imaging methods with suitable temporal resolution for viscous-dominated flow have only recently emerged.
In this work, we study viscous fingering and stable displacement processes.
During viscous fingering, pore-scale flow fields are reminiscent of Bretherton annular flow, that is, the less viscous phase percolates through the core of a pore-throat forming a hydrodynamic wetting film.
Even in simple microstructures wetting films have major impact on the evolution of fluid interfacial area and are observed to give rise to nonnegligible interfacial viscous coupling.
Although macroscopically appearing flat, saturation fronts during stable displacement extend over the length of the capillary dispersion zone.
While far from the dispersion zone fluid permeation obeys Darcy’s law, the interplay of viscous and capillary forces is found to render fluid flow within complex.
Here we show that the characteristic length scale of the capillary dispersion zone increases with the heterogeneity of the microstructure.
American Psychological Association (APA)
Sivanesapillai, Rakulan& Steeb, Holger. 2018. Fluid Interfaces during Viscous-Dominated Primary Drainage in 2D Micromodels Using Pore-Scale SPH Simulations. Geofluids،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1158619
Modern Language Association (MLA)
Sivanesapillai, Rakulan& Steeb, Holger. Fluid Interfaces during Viscous-Dominated Primary Drainage in 2D Micromodels Using Pore-Scale SPH Simulations. Geofluids No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1158619
American Medical Association (AMA)
Sivanesapillai, Rakulan& Steeb, Holger. Fluid Interfaces during Viscous-Dominated Primary Drainage in 2D Micromodels Using Pore-Scale SPH Simulations. Geofluids. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1158619
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1158619