Results 21 to 30 of about 3,494,247 (298)

A dynamic convergence control scheme for the solution of the radial equilibrium equation in through-flow analyses [PDF]

open access: yes, 2010
One of the most frequently encountered numerical problems in scientific analyses is the solution of non-linear equations. Often the analysis of complex phenomena falls beyond the range of applicability of the numerical methods available in the public ...
Templalexis, I.   +3 more
core   +1 more source

Investigation of radial flow ejector performance through experiments and computational simulations [PDF]

open access: yes, 2017
Adjustability in ejector geometry is desirable to extend the operating range of ejectors at different working conditions. Current approaches to geometric adjustability in the throat sizes of conventional axial ejectors have the disadvantage of blocking ...
Rahimi, Hadi
core   +1 more source

3-D Modeling of Gas–Solid Two-Phase Flow in a π-Shaped Centripetal Radial Flow Adsorber

open access: yesApplied 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
doaj   +1 more source

Radial-Artery or Saphenous-Vein Grafts in Coronary-Artery Bypass Surgery [PDF]

open access: yes, 2018
BACKGROUND: The use of radial-artery grafts for coronary-artery bypass grafting (CABG) may result in better postoperative outcomes than the use of saphenous-vein grafts.
Benedetto, Umberto   +7 more
core   +1 more source

Numerical and Experimental Investigation on Unsteady Flow and Hydraulic Radial Force of Low-Head Axial Flow Turbine [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Radial force in low-head axial flow turbines (AFTs) is an influential factor in their operational stability. To explore the transient operating behavior of the radial force in low-head AFTs under different blade numbers, transient numeric computations ...
Y. Sunsheng   +5 more
doaj   +1 more source

An experimental device for measuring radial flow velocity profiles of yield stress fluids

open access: yes, 2021
Measuring the radial flow velocity field of yield stress fluids (YSFs) between two parallel disks provides crucial data to understand the underlying flow phenomena. However, direct velocimetry of YSFs in the radial flow configuration remains a challenge,
Zou, Liangchao,   +2 more
core   +2 more sources

An Efficient Immersed Boundary Method for Solving the Unsteady Flow through Actual Geometries of Reed Valves [PDF]

open access: yes, 2012
In refrigeration compressors, the suction and discharge valves are responsible for the retention of the refrigerant from the suction chamber to the cylinder and passage from the cylinder to the discharge chamber.
Barbi, Franco   +2 more
core   +1 more source

Heat and mass transfer characteristics of the gas−solid two-phase model in a π-shaped centripetal radial flow adsorber

open access: yes工程科学学报, 2019
In order to investigate the heat and the mass transfer during pressure swing adsorption (PSA) for oxygen production and improve oxygen production efficiency, a gas-solid two-phase pressure swing adsorption model was established for the π-shaped ...
Hao-yu WANG   +5 more
doaj   +1 more source

Influence of the constitutive flow law in FEM simulation of the Radial forging process [PDF]

open access: yes, 2013
Radial forging is a widely used forming process for manufacturing hollow products in transport industry. As the deformation of the workpiece, during the process, is a consequence of a large number of high-speed strokes, the Johnson-Cook constitutive law (
Gueye, Babacar   +3 more
core   +1 more source

Data reduction problems using a 3 holes directional pressure probe to investigate mean flow characteristics in the vaneless gap between impeller and diffuser radial pump [PDF]

open access: yes, 2013
Among several different measurement techniques that have been already performed and presented in a radial impeller pump model including PIV, a directional pressure probe has been used to obtain mean velocity field and stagnation pressure between impeller
DAZIN, Antoine   +4 more
core   +1 more source

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