Results 11 to 20 of about 3,213 (251)

Experimental Investigation of Forchheimer Coefficients for Non-Darcy Flow in Conglomerate-Confined Aquifer [PDF]

open access: yesGeofluids, 2018
A conglomerate-confined aquifer (CCA) plays an important role in affecting the safety and environmental protection during energy mining. In this study, the Forchheimer coefficients and associated seepage characteristics of the CCA were studied for different hydrogeological conditions via integrating theoretical analysis, hydromechanical experiment, and
Tong Zhang   +6 more
openaire   +3 more sources

A hybrid analytical/numerical model for the characterization of preferential flow path with non-Darcy flow. [PDF]

open access: yesPLoS ONE, 2013
Due to the long-term fluid-solid interactions in waterflooding, the tremendous variation of oil reservoir formation parameters will lead to the widespread evolution of preferential flow paths, thereby preventing the further enhancement of recovery ...
Sen Wang, Qihong Feng, Xiaodong Han
doaj   +1 more source

Influence of pressure on filtration performance of nanofiber composite filtering material

open access: yesYou-qi chuyun, 2022
Purification technology is required to separate the liquid impurities of natural gas during its transportation. However, the filtration performance of coalescing filter element used for natural gas purification at present needs to be improved. Therefore,
Xianzhao WANG   +6 more
doaj   +1 more source

Numerical Simulation on Non-Darcy Flow in a Single Rock Fracture Domain Inverted by Digital Images

open access: yesGeofluids, 2020
The influence of rock seepage must be considered in geotechnical engineering, and understanding the fluid flow in rock fractures is of great concern in the seepage effect investigation.
Jianli Shao   +4 more
doaj   +1 more source

Estimation of the Non‐Darcy Coefficient Using Supercritical CO2 and Various Sandstones [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2019
AbstractNon‐Darcy flow (also known as high‐velocity flow, inertial flow, etc.) often occurs in the near‐well region of a reservoir during injection or production. This flow needs to be characterized and its origins fully understood, as it is a critical factor in reducing well productivity.
C. S. Choi, J. J. Song
openaire   +1 more source

A Negative Value of the Non-Darcy Flow Coefficient in Pore-Fracture Media under Hydro-Mechanical Coupling

open access: yesMinerals, 2023
The Forchheimer equation is widely used in studying non-Darcy flow. Non-Darcy flow coefficient β in the Forchheimer equation is generally thought to be positive, and there are few studies on negative values. In this work, we performed seepage tests on sandstone samples with single, T-shaped, and Y-shaped fractures under different confining pressures ...
Ying Zhang   +6 more
openaire   +1 more source

Numerical analysis for Darcy-Forchheimer flow in presence of homogeneous-heterogeneous reactions

open access: yesResults in Physics, 2017
A mathematical study is presented to investigate the influences of homogeneous and heterogeneous reactions in local similar flow caused by stretching sheet with a non-linear velocity and variable thickness.
Muhammad Ijaz Khan   +2 more
doaj   +1 more source

Large-Strain Nonlinear Consolidation of Sand-Drained Foundations Considering Vacuum Preloading and the Variation in Radial Permeability Coefficient

open access: yesBuildings, 2023
The vacuum preloading method effectively strengthens soft soil foundations with vertical drainage, which produces a smear effect when laying sand drains.
Zan Xu   +4 more
doaj   +1 more source

Study on the REV Size of Fractured Rock in the Non-Darcy Flow Based on the Dual-Porosity Model

open access: yesGeofluids, 2018
For the problem of whether the representative elementary volume (REV) obtained in the Darcy flow is also applicable to the case of the non-Darcy flow, the study on the REV size within the non-Darcy flow is proposed tentatively.
Yuan Wang, Yu-long Niu, Qiang Feng
doaj   +1 more source

Modelling laminar transport phenomena in a Casson rheological fluid from an isothermal sphere with partial slip in a non-Darcy porous medium [PDF]

open access: yesTheoretical and Applied Mechanics, 2013
The flow and heat transfer of Casson fluid from a permeable isothermal sphere in the presence of slip condition in a non-Darcy porous medium is analyzed. The sphere surface is maintained at a constant temperature. The boundary layer conservation
Prasad Ramachandra V.   +3 more
doaj   +1 more source

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