Jamming transition and emergence of fracturing in wet granular media
Author(s)
Meng, Yue; Primkulov, Bauyrzhan K; Yang, Zhibing; Kwok, Chung Yee; Juanes, Ruben
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We study fluid-induced deformation of granular media, and the fundamental role of capillarity and wettability on the emergence of fracture patterns. We develop a hydromechanical computational model, coupling a “moving capacitor” dynamic network model of two-phase flow at the pore scale with a discrete element model of grain mechanics. We simulate the slow injection of a less viscous fluid into a frictional granular pack initially saturated with a more viscous, immiscible fluid. We study the impact of wettability and initial packing density, and find four different regimes of the fluid invasion: cavity expansion and fracturing, frictional fingers, capillary invasion, and capillary compaction. We explain fracture initiation as emerging from a jamming transition, and synthesize the system's behavior in the form of a phase diagram of jamming for wet granular media.
Date issued
2020-04Department
Massachusetts Institute of Technology. Department of Civil and Environmental EngineeringJournal
Physical Review Research
Publisher
American Physical Society (APS)
Citation
Yue Meng, Bauyrzhan K. Primkulov, Zhibing Yang, Chung Yee Kwok, and Ruben Juanes, Jamming transition and emergence of fracturing in wet granular media, Phys. Rev. Research 2, 022012(R)
Version: Final published version
ISSN
2643-1564