Results 11 to 20 of about 1,664 (229)

Estimation of aquitard hydraulic conductivity and skeletal specific storage considering non-Darcy flow

open access: yesWater Science and Engineering, 2021
Darcy's law has been widely used to study the groundwater drainage process within an aquitard. However, non-Darcy flow is frequently encountered in laboratory and in situ investigations.
Chao Zhuang   +4 more
doaj   +1 more source

Stability analysis of seepage slope based on Darcy’s law

open access: yesMeikuang Anquan, 2021
In order to study the influence of long-term rainfall on the southern slope of an open-pit coal mine in Xinjiang, and the variation of pore water pressure in the slope at different periods after rainfall, Darcy’s law and Van Genuchten model and ...
LI Ming, MIAO Haibin, MA Mingkang, MA Xiyan, YUAN Ruiyang
doaj   +1 more source

Investigation of low water recovery based on gas-water two-phase low-velocity Non-Darcy flow model for hydraulically fractured horizontal wells in shale

open access: yesPetroleum, 2023
Various mechanisms are employed to interpret the low water recovery during the shale-gas production period, such as extra-trapped water in the fracture network, water imbibition due to osmotic pressure and capillary pressure. These lead to the difficulty
Yong He   +6 more
doaj   +1 more source

The mathematical model of gas flowing in porous medium based on the homogenization method [PDF]

open access: yesE3S Web of Conferences, 2021
Considered the characteristics of porous medium in the coal seam and goaf, in order to reflect the accurately influence of various porous media against the gas flow, the mathematical model of discrete multi-scale network and macroscopic flow, CFCM (Coal ...
Xiong Wei
doaj   +1 more source

Active Darcy’s Law [PDF]

open access: yesPhysical Review Letters
While bacterial swarms can exhibit active turbulence in vacant spaces, they naturally inhabit crowded environments. We numerically show that driving disorderly active fluids through porous media enhances Darcy’s law. While purely active flows average to zero flux, hybrid active/driven flows display greater drift than purely pressure-driven flows.
Keogh, Ryan R.   +3 more
openaire   +4 more sources

Laws of Gas Diffusion in Coal Particles: A Study Based on Experiment and Numerical Simulation

open access: yesGeofluids, 2021
In order to research on the law of methane released through the pore in coal particles, the methane desorption experiments were conducted, respectively, on four types of particle size of coal samples under three different initial adsorption pressures ...
Yongjiang Hao, Xiaofeng Ji, Jiewen Pang
doaj   +1 more source

Darcy’s Law for Yield Stress Fluids [PDF]

open access: yesPhysical Review Letters, 2019
Predicting the flow of non-Newtonian fluids in porous structure is still a challenging issue due to the interplay betwen the microscopic disorder and the non-linear rheology. In this letter, we study the case of an yield stress fluid in a two-dimensional structure.
Liu, Chen   +3 more
openaire   +4 more sources

Numerical simulation for MHD Williamson fluid utilizing modified Darcy’s law

open access: yesResults in Physics, 2018
Objective of present investigation is to study peristaltic flow of MHD Williamson fluid in a planar symmetric channel. An incompressible fluid occupies the porous medium in a channel.
T. Hayat   +3 more
doaj   +1 more source

Experimental investigations for assessing the influence of fly ash on the flow through porous media in Darcy regime

open access: yesWater Science and Technology, 2021
Hydraulic conductivity plays a vital role in the studies encompassing explorations on flow and porous media. The study investigates the compaction characteristics of a river sand (Beas, Sutlej, and Ghaggar rivers) and fly ash mix in different proportions
Abhishish Chandel   +2 more
doaj   +1 more source

Characterization of a Non-Darcy Flow and Development of New Correlation of NON-Darcy Coefficient

open access: yesEnergies, 2022
Darcy’s law has long been used to describe the flow in porous media. Despite the progress that took place in oil production industry research, it became clear that there is a loss of pressure, especially in the area near the wellbore region, where Darcy ...
Abadelhalim Elsanoose   +5 more
doaj   +1 more source

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