Results 31 to 40 of about 18,445 (315)
Pneumatic fractures in confined granular media [PDF]
Physical Review E, 2017 We perform experiments where air is injected at a constant overpressure P_{in}, ranging from 5 to 250 kPa, into a dry granular medium confined within a horizontal linear Hele-Shaw cell. The setup allows us to explore compacted configurations by preventing decompaction at the outer boundary, i.e., the cell outlet has a semipermeable filter such that ...
Eriksen, Fredrik K. +4 more
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Oil & Gas Science and Technology, 2020 Numerical modeling of two-phase flows in heterogeneous and fractured media is of great interest in petroleum reservoir engineering. The classical model for two-phase flows in porous media is not completely thermodynamically consistent since the energy ...
Gao Huicai +3 more
doaj +1 more source
Generalized Multiscale Finite Element Method for Elastic Wave Propagation in the Frequency Domain
Computation, 2020 In this work, we consider elastic wave propagation in fractured media. The mathematical model is described by the Helmholtz problem related to wave propagation with specific interface conditions (Linear Slip Model, LSM) on the fracture in the frequency ...
Uygulana Gavrilieva +2 more
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Study on the migration of dense non-aqueous phase liquids in heterogeneous fractured media
Shui kexue jinzhan, 2015 Due to the strong heterogeneity of fractured media,the migration behavior of Dense Non-Aqueous Phase Liquids (hereafter referred to as DNAPLs) in fractured media is more complicated than in pore media.
DENG Yaping +3 more
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Study on Stress-Dependent Permeability of Fracture Networks in Fractured Porous Media
Geofluids, 2021 In order to investigate the stress-sensitive characteristics of fracture networks under reservoir actual stress condition and its influence on the seepage in fractured porous media, we carried out permeability tests on experimental models with fracture ...
Yueli Feng, Yuetian Liu, Gang Lei
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Robust Discretization of Flow in Fractured Porous Media [PDF]
SIAM Journal on Numerical Analysis, 2018 Flow in fractured porous media represents a challenge for discretization methods due to the disparate scales and complex geometry. Herein we propose a new discretization, based on the mixed finite element method and mortar methods. Our formulation is novel in that it employs the normal fluxes as the mortar variable within the mixed finite element ...
Wietse M. Boon +2 more
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Geofluids, 2021 In this study, we present a hybrid model coupled with two-set nodes Green element method (GEM) and embedded discrete fracture model (EDFM) for capturing the effect of transient flow in inhomogeneous fractured porous media.
Linsong Cheng +4 more
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Experimental study on seepage characteristics and permeability of fractured rock mass in goaf
Meikuang Anquan, 2022 In order to obtain the flow behavior of the mining-induced fractured rock mass, and to confirm the values of hydraulic conductivity of the fractured rock, which could provide a reference for mining impact assessment, two methods that the similarity ...
XU Shuyuan +4 more
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Thermally activated fracture of porous media
The European Physical Journal B, 2011 The lifetime of a porous media, submitted to a constant subcritical stress, is studied by means of a numerical model. This model is based on a spring network where the porosity is represented by missing springs. The dynamics is produced adding thermal fluctuations in spring forces.
Guarino, Alessio, Ciliberto, Sergio
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Journal of Cardiothoracic Surgery, 2020 Background Fractured catheter as a foreign body in situ is a rare complication after port catheter placement. We report a single center’s experience on percutaneous transvenous retrieval of intravascular fractured port catheter and treatment techniques ...
Yahua Li +6 more
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