Computation of the Permeability Tensor of Non-Periodic Anisotropic Porous Media from 3D Images [PDF]
, 2022 The direct proportionality between the flow rate and the pressure gradient of creeping flows was experimentally discovered by H. Darcy in the 19th century and theoretically justified a couple of decades ago using upscaling methods such as volume ...
AHMADI-SENICHAULT, Azita +3 more
core +1 more source
A two-pressure model for slightly compressible single phase flow in bi-structured porous media [PDF]
, 2012 Problems involving flow in porous media are ubiquitous in many natural and engineered systems. Mathematical modeling of such systems often relies on homogenization of pore-scale equations and macroscale continuum descriptions.
Davit, Yohan +5 more
core +1 more source
Elastoviscoplastic flows in porous media
Journal of Non-Newtonian Fluid Mechanics, 2018 We investigate the elastoviscoplastic flow through porous media by numerical simulations. We solve the Navier-Stokes equations combined with the elastoviscoplastic model proposed by Saramito for the stress tensor evolution. In this model, the material behaves as a viscoelastic solid when unyielded, and as a viscoelastic Oldroyd-B fluid for stresses ...
De Vita, F. +6 more
openaire +4 more sources
Research on Stress Sensitivity of Fractured Carbonate Reservoirs Based on CT Technology
Energies, 2017 Fracture aperture change under stress has long been considered as one of primary causes of stress sensitivity of fractured gas reservoirs. However, little is known about the evolution of the morphology of fracture apertures on flow property in loading ...
Yongfei Yang +7 more
doaj +1 more source
Adjoint-based topology optimization of filter structures for gas–particle systems
AIP Advances, 2021 Conventional filters for aerosol particle deposition consist of one or more filter layers, which are either woven or composed of tangled fibers. The quality of the separation results almost exclusively from the density of the fiber arrangement.
N. Jüngling, J. Niessner
doaj +1 more source
In Situ Deformation Analysis of a Fracture in Coal under Cyclic Loading and Unloading
Energies, 2021 The deformation analysis of fractures is vital for advantageous development of oil and gas fields, especially the coalbed methane (CBM) reservoir, since the change of fracture parameters can be directly evaluated through fracture deformation analysis ...
Zhihui Liu +3 more
doaj +1 more source
Upscaling multi-component two-phase flow in porous media with partitioning coefficient [PDF]
, 2011 This paper deals with the upscaling of multicomponents two-phase flow in porous media. In this paper, chemical potential equilibrium at the interface between both phases is assumed to be described by a linear partitioning relationship such as Raoult or ...
Quintard, Michel +5 more
core +1 more source
Deformation and rupture of microcapsules flowing through constricted capillary
Scientific Reports, 2021 The dynamics of deformable microcapsules flowing through constricted channels is relevant in target delivery of chemicals in physiological systems, porous media, microfluidic medical diagnostic devices and many other applications. In some situations, the
Bruna C. Leopércio +2 more
doaj +1 more source
The Influence of Micro-Fractures on the Flow in Tight Oil Reservoirs Based on Pore-Network Models
Energies, 2019 In this paper, the influence of micro-fractures on the flow of tight reservoirs is studied on the microscopic scale. Three-dimensional digital cores of fractured tight sandstone with varying fracture apertures, lengths, and dip angles are constructed ...
Hai Sun +8 more
doaj +1 more source
Optimization of Non-Uniform Perforation Parameters for Multi-Cluster Fracturing
Energies, 2022 Stress shadowing affects the simultaneous propagation of fractures from multiple perforation clusters. Employing uniform perforation parameters for all clusters cause the unbalanced growth of fractures, which arouses the demand of optimizing non-uniform ...
Qingdong Zeng, Wenzheng Liu, Jun Yao
doaj +1 more source