Results 11 to 20 of about 225,791 (344)

Research on the Correction Method of the Capillary End Effect of the Relative Permeability Curve of the Steady State

open access: yesEnergies, 2021
Relative permeability curve is a key factor in describing the characteristics of multiphase flow in porous media. The steady-state method is an effective method to measure the relative permeability curve of oil and water.
Yanyan Li   +6 more
doaj   +1 more source

Investigating permeability of metal felt capillary structures of heat pipes for cooling electronics

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2020
The paper presents the experimental results on the permeability of metal felt capillary-porous structures with a fiber diameter of 10—50 μm at porosity values from 57% to 90% when the fluid filtration occurs along the felt plane.
Vladimir Kravets   +3 more
doaj   +1 more source

A New Method for Predicting the Permeability of Sandstone in Deep Reservoirs

open access: yesGeofluids, 2020
Capillary pressure curve data measured through the mercury injection method can accurately reflect the pore throat characteristics of reservoir rock; in this study, a new methodology is proposed to solve the aforementioned problem by virtue of the ...
Feisheng Feng   +6 more
doaj   +1 more source

Capillary Permeability to Macromolecules [PDF]

open access: yesCirculation Research, 1955
Small infusions of dextran fractions having average molecular weights ranging from 10,600 to 412,000 yield plasma to lymph concentration ratios which are directly proportional to molecular weight. The concentration gradient for a specific molecular weight, however, decreases as the volume of infusion is increased. This volume effect, explained in terms
KARLMAN WASSERMAN   +4 more
openaire   +2 more sources

Dynamic effect of capillary pressure in low permeability reservoirs

open access: yesPetroleum Exploration and Development, 2012
The dynamic effect of capillary pressure in oil-water two-phase percolation flow in low permeability reservoirs was investigated by experiment and numerical simulation.
Shubao TIAN   +3 more
doaj   +1 more source

Biomimetic Copper Forest Structural Modification Enhances the Capillary Flow Characteristics of the Copper Mesh Wick

open access: yesEnergies, 2023
In a two-phase heat transfer device, achieving a high capillarity of the wick while reducing flow resistance within a limited space becomes the key to improving the heat dissipation performance.
Jia-Li Luo   +4 more
doaj   +1 more source

The stability of immiscible viscous fingering in Hele-Shaw cells with spatially varying permeability [PDF]

open access: yes, 2017
In this paper, we investigate the stability of immiscible viscous fingering in Hele-Shaw cells with spatially varying permeability, across a range of capillary numbers.
Giddings, Donald   +3 more
core   +2 more sources

An Efficient Method for Determining Capillary Pressure and Relative Permeability Curves from Spontaneous Imbibition Data [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2015
In this paper, a very efficient method, called single matrix block analyzer (SMBA), has been developed to determine relative permeability and capillary pressure curves from spontaneous imbibition (SI) data.
Mojtaba Ghaedi   +3 more
doaj   +1 more source

Gas transport and separation with ceramic membranes. Part I: Multilayer diffusion and capillary condensation [PDF]

open access: yes, 1992
Multilayer diffusion and capillary condensation of propylene on supported γ-alumina films greatly improved the permeability and selectivity. Multilayer diffusion, occurring at relative pressures of 0.4 to 0.8 strongly increased the permeability of 6 ...
Burggraaf, A.J.   +2 more
core   +2 more sources

Simulating temporal evolution of pressure in two-phase flow in porous media [PDF]

open access: yes, 1998
We have simulated the temporal evolution of pressure due to capillary and viscous forces in two-phase drainage in porous media. We analyze our result in light of macroscopic flow equations for two-phase flow. We also investigate the effect of the trapped
Alex Hansen   +30 more
core   +2 more sources

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