Results 11 to 20 of about 621,177 (350)
Applied Sciences, 2019 Radial flow is an important type of flow direction for large-scale pressure swing adsorption (PSA) oxygen generation systems. In this study, a numerical simulation of a PSA oxygen generation process based on radial-flow adsorbers was performed with two ...
Xiong Yang +6 more
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Dyna, 2019 Flow behind the casing has normally been identified and quantified using production logging tools. Very few applications of pressure transient analysis, which is much cheaper, have been devoted to determining compromised cemented zones.
Freddy Humberto Escobar +2 more
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Записки Горного института, 2020 There are many equations of steady inflow of fluid to the wells depending on the type of well, presence or absence of artificial or natural fractures passing through the well, different degrees of drilling-in of the wellbores.
Valery A. Iktissanov
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Transport, 2021 Invention proposes an adaptive gripping device of an industrial robot, which combines functions of capturing different-shape manipulation objects with control of deviations from the shape of these objects.
Volodymyr Savkiv +5 more
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Radial Motions and Radial Gas Flows in Local Spiral Galaxies [PDF]
The Astrophysical Journal, 2021 Abstract We determine radial velocities and mass flow rates in a sample of 54 local spiral galaxies by modeling high-resolution and high-sensitivity data of the atomic hydrogen emission line. We found that, although radial inflow motions seem to be slightly preferred over outflow motions, their magnitude is generally small. Most galaxies
Enrico M. Di Teodoro, J. E. G. Peek
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Particulate Modeling of Sand Production Using Coupled DEM-LBM
Energies, 2021 Sand production is a complex phenomenon caused by the erosion of borehole walls during the extraction of hydrocarbons. In this paper, the sanding process in a typical Thick-Walled Hollow Cylinder (TWHC) test is numerically simulated.
Siavash Honari, Ehsan Seyedi Hosseininia
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Development of the governing equation on the behavior of radial flows in coarse porous media and its numerical solution [PDF]
Journal of Applied Research in Water and Wastewater, 2020 The hydrous bed of the rivers covered with coarse alluvial materials is a goodresource along with other resources to provide the needs of the water.
Jalal Sadeghian, Mohammad Reza Mihani
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Analytic mode matching for a circular dissipative silencer containing mean flow and a perforated pipe [PDF]
, 2007 An analytic mode matching scheme that includes higher order modes is developed for a straight-through circular dissipative silencer. Uniform mean flow is added to the central airway and a concentric perforated screen separates the mean flow from a bulk ...
Denia, FD, Kirby, R
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3-D Modeling of Gas–Solid Two-Phase Flow in a π-Shaped Centripetal Radial Flow Adsorber
Applied Sciences, 2020 Radial flow adsorber (RFA) is widely used in large-scale pressure swing adsorption (PSA) oxygen production system because of high air separation. In this study, a 3-D modeling of gas−solid two-phase flow was established for the π-shaped ...
Haoyu Wang +6 more
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Hydrodynamic simulation of elliptic flow [PDF]
, 1999 We use a hydrodynamic model to study the space-time evolution transverse to the beam direction in ultrarelativistic heavy-ion collisions with nonzero impact parameters. We focus on the influence of early pressure on the development of radial and elliptic
Heinz, U. +3 more
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