scholarly journals The Role of Capillary Hysteresis and Pore‐Scale Heterogeneity in Limiting the Migration of Buoyant Immiscible Fluids in Porous Media

2018 ◽  
Vol 54 (7) ◽  
pp. 4309-4318 ◽  
Author(s):  
Abdullah Cihan ◽  
Shibo Wang ◽  
Tetsu K. Tokunaga ◽  
Jens T. Birkholzer
Keyword(s):  
Porous Media ◽  
Immiscible Fluids ◽  
Pore Scale ◽  
Capillary Hysteresis ◽  
Scale Heterogeneity

Two-Dimensional Numerical Analysis of Non-Darcy Flow Using the Lattice Boltzmann Method: Pore-Scale Heterogeneous Effects

2021 ◽  
Vol 143 (6) ◽  
Author(s):  
Yuto Takeuchi ◽  
Junichiro Takeuchi ◽  
Tomoki Izumi ◽  
Masayuki Fujihara
Keyword(s):  
Porous Media ◽  
Lattice Boltzmann ◽  
Darcy Flow ◽  
Two Dimensional ◽  
Pore Scale ◽  
Scale Heterogeneity ◽  
Simulation Results ◽  
Channeling Effect ◽  
Boltzmann Method ◽  
Participation Number

Abstract This study simulates pore-scale two-dimensional flows through porous media composed of circular grains with varied pore-scale heterogeneity to analyze non-Darcy flow effects on different types of porous media using the lattice Boltzmann method. The magnitude of non-Darcy coefficients and the critical Reynolds number of non-Darcy flow were computed from the simulation results using the Forchheimer equation. Although the simulated porous materials have similar porosity and representative grain diameters, larger non-Darcy coefficients and an earlier onset of non-Darcy flow were observed for more heterogeneous porous media. The simulation results were compared with existing correlations to predict non-Darcy coefficients, and the large sensitivity of non-Darcy coefficients to pore-scale heterogeneity was identified. The pore-scale heterogeneity and resulting flow fields were evaluated using the participation number. From the computed participation numbers and visualized flow fields, a significant channeling effect for heterogeneous media in the Darcy flow regime was confirmed compared with that for homogeneous media. However, when non-Darcy flow occurs, this channeling effect was alleviated. This study characterizes non-Darcy effect with alleviation of the channeling effect quantified with an increase in participation number. Our findings indicate a strong sensitivity of magnitude and onset of non-Darcy effect to pore-scale heterogeneity and imply the possibility of evaluating non-Darcy effect through numerical analysis of the channeling effect.

scholarly journals Impact of spatially correlated pore-scale heterogeneity on drying porous media

2017 ◽  
Vol 53 (7) ◽  
pp. 5645-5658 ◽  
Author(s):  
Oshri Borgman ◽  
Paolo Fantinel ◽  
Wieland Lühder ◽  
Lucas Goehring ◽  
Ran Holtzman
Keyword(s):  
Porous Media ◽  
Pore Scale ◽  
Spatially Correlated ◽  
Scale Heterogeneity

Effects of Pore-Scale Heterogeneity and Transverse Mixing on Bacterial Growth in Porous Media

2010 ◽  
Vol 44 (8) ◽  
pp. 3085-3092 ◽  
Author(s):  
Changyong Zhang ◽  
Qinjun Kang ◽  
Xing Wang ◽  
Julie L. Zilles ◽  
Roland H. Müller ◽  
...  
Keyword(s):  
Porous Media ◽  
Bacterial Growth ◽  
Pore Scale ◽  
Transverse Mixing ◽  
Scale Heterogeneity

scholarly journals Efficiently engineering pore-scale processes: The role of force dominance and topology during nonwetting phase trapping in porous media

2015 ◽  
Vol 79 ◽  
pp. 91-102 ◽  
Author(s):  
Anna L. Herring ◽  
Linnéa Andersson ◽  
Steffen Schlüter ◽  
Adrian Sheppard ◽  
Dorthe Wildenschild
Keyword(s):  
Porous Media ◽  
Pore Scale ◽  
And Topology

Pore scale spatial analysis of two immiscible fluids in porous media

1991 ◽  
Vol 27 (6) ◽  
pp. 1165-1176 ◽  
Author(s):  
Haim Gvirtzman ◽  
Paul V. Roberts
Keyword(s):  
Porous Media ◽  
Spatial Analysis ◽  
Immiscible Fluids ◽  
Pore Scale

Pore-Scale Experimental Study of Boiling in Porous Media

2014 ◽  
Author(s):  
Paul SAPIN ◽  
Paul Duru ◽  
Florian Fichot ◽  
Marc Prat ◽  
Michel Quintard
Keyword(s):  
Experimental Study ◽  
Porous Media ◽  
Pore Scale
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