Results 31 to 40 of about 145,183 (304)

A Coupled Novel Green Element and Embedded Discrete Fracture Model for Simulation of Fluid Flow in Fractured Reservoir

open access: yesGeofluids, 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
doaj   +1 more source

Experimental study on seepage characteristics and permeability of fractured rock mass in goaf

open access: yesMeikuang 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
doaj   +1 more source

Fracture Model Reduction and Optimization for Forchheimer Flows in Reservoir

open access: yes, 2017
In this study, we analyze the flow filtration process of slightly compressible fluids in fractured porous media. We model the coupled fractured porous media system, where the linear Darcy flow is considered in porous media and the nonlinear Forchheimer ...
Aulisa, Eugenio   +3 more
core   +1 more source

A new approach to upscaling fracture network models while preserving geostatistical and geomechanical characteristics [PDF]

open access: yes, 2015
A new approach to upscaling two-dimensional fracture network models is proposed for preserving geostatistical and geomechanical characteristics of a smaller-scale “source” fracture pattern.
Lang, P   +4 more
core   +1 more source

Two-Phase Flow Through Fractured Porous Media

open access: yesECMOR VIII - 8th European Conference on the Mathematics of Oil Recovery, 2002
Two-phase flow in fractured porous media is investigated by means of a direct and complete numerical solution of the generalized Darcy equations in a three-dimensional discrete fracture description. The numerical model applies to arbitrary fracture network geometry, and to arbitrary distributions of permeabilities in the porous matrix and in the ...
Bogdanov, I. I.   +3 more
openaire   +3 more sources

Successful percutaneous transvenous retrieval of intravascular fractured port catheter: a single center experience

open access: yesJournal 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
doaj   +1 more source

Numerical treatment of temporal-fractional porous medium model occurring in fractured media

open access: yesJournal of Ocean Engineering and Science, 2023
This paper proposes a temporal-fractional porous medium model (T-FPMM) for describing the co-current and counter-current imbibition, which arises in a water-wet fractured porous media. The correlation between the co-current and counter-current imbibition
R. Meher   +3 more
doaj   +1 more source

A coupled thermal–hydrological–mechanical model for geothermal energy extraction in fractured reservoirs

open access: yesJournal of Petroleum Exploration and Production Technology, 2023
Understanding fluid flow in fractured porous media under coupled thermal–hydrological–mechanical (THM) conditions is a fundamental aspect of geothermal energy extraction.
Tian Fang   +5 more
doaj   +1 more source

Non-local Multi-continua Upscaling for Flows in Heterogeneous Fractured Media

open access: yes, 2017
In this paper, we propose a rigorous and accurate non-local (in the oversampled region) upscaling framework based on some recently developed multiscale methods [10].
Chung, Eric T.   +4 more
core   +1 more source

Numerical Modeling of Shock-Induced Damage for Granite under Dynamic Loading [PDF]

open access: yes, 2006
Johnson-Holmquist constitutive model for brittle materials, coupled with a crack softening model, is used to describe the deviatoric and tensile crack propagation beneath impact crater in granite.
Ahrens, T. J., Ai, H. A.
core   +1 more source

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