Results 21 to 30 of about 68,920 (314)

Porous Flow with Diffuse Interfaces [PDF]

open access: yes, 2021
This chapter presents a model developed by the author, in publications dated from 2002 to 2016, on flow in porous media assuming diffuse interfaces. It contains five sections.
Paul Papatzacos, Papatzacos, Paul Georg
core   +1 more source

Steady-State Transitions in Ordered Porous Media

open access: yes, 2023
Previously performed experiments on flow through an ordered porous media cell with tomographic particle image velocimetry reveal a complex three-dimensional steady-state flow pattern.
Larsson, I. A. Sofia,   +11 more
core   +1 more source

Reducing indoor particle exposure using mobile air purifiers—Experimental and numerical analysis

open access: yesAIP Advances, 2021
Aerosol particles are one of the main routes of transmission of COVID-19. Mobile air purifiers are used to reduce the risk of infection indoors. We focus on an air purifier that generates a defined volumetric air flow through a highly efficient filter ...
Adrian Tobisch   +7 more
doaj   +1 more source

MODELING WELLS IN POROUS MEDIA FLOW

open access: yesMathematical Models and Methods in Applied Sciences, 2000
In this paper, we prove the existence of weak solutions for mathematical models of miscible and immiscible flow through porous medium. An important difficulty comes from the modelization of the wells, which does not allow us to use classical variational formulations of the equations.
Fabrie, Pierre, Gallouët, Thierry
openaire   +2 more sources

Coupling of two-phase flow in fractured-vuggy reservoir with filling medium

open access: yesOpen Physics, 2017
Caves in fractured-vuggy reservoir usually contain lots of filling medium, so the two-phase flow in formations is the coupling of free flow and porous flow, and that usually leads to low oil recovery.
Xie Haojun   +4 more
doaj   +1 more source

Influence of micro‐pore structure in tight sandstone reservoir on the seepage and water‐drive producing mechanism—a case study from Chang 6 reservoir in Huaqing area of Ordos basin

open access: yesEnergy Science & Engineering, 2019
To study the influence of pore structure on the seepage and water‐drive producing mechanisms, various methods were combined to describe the micro‐pore structure in the Chang 6 tight sandstone reservoir in the Huaqing area, Ordos Basin, China.
Xiaoxia Ren   +3 more
doaj   +1 more source

Research on carbonate reservoir interwell connectivity based on a modified diffusivity filter model

open access: yesOpen Physics, 2017
According to the solution of dual-porosity model, a diffusivity filter model of carbonate reservoir was established, which can effectively illustrate the injection signal attenuation and lag characteristic.
Wang Wei, Yao Jun, Li Yang, Lv Aimin
doaj   +1 more source

Numerical study on influence of water based hybrid nanofluid and porous media on heat transfer and pressure loss

open access: yesCase Studies in Thermal Engineering, 2022
The performance augmentation of the heat exchangers is a deal between heat transfer improvement and pressure loss penalty. There is no study investigating this deal as the thermal performance index of the heat exchangers filled by hybrid nanofluid and ...
S. Sivasankaran, M. Bhuvaneswari
doaj   +1 more source

New Understanding of Transient Pressure Response in the Transition Zone of Oil-Water and Gas-Water Systems

open access: yesGeofluids, 2018
Well test analysis requires a preselected model, which relies on the context input and the diagnostic result through the pressure logarithmic derivative curve.
Wenbin Xu   +3 more
doaj   +1 more source

Lattice Boltzmann Modelling of Fluid Flow through Porous Media: A Comparison between Pore-Structure and Representative Elementary Volume Methods

open access: yesEnergies, 2023
In this study, we present a novel comparison between pore-structure (PS) and representative elementary volume (REV) methods for modelling fluid flow through porous media using a second-order lattice Boltzmann method (LBM).
Annunziata D’Orazio   +2 more
doaj   +1 more source

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