Results 11 to 20 of about 208,593 (196)

Precise Void Fraction Measurement in Two-phase Flows Independent of the Flow Regime Using Gamma-ray Attenuation

open access: yesNuclear Engineering and Technology, 2016
Void fraction is an important parameter in the oil industry. This quantity is necessary for volume rate measurement in multiphase flows. In this study, the void fraction percentage was estimated precisely, independent of the flow regime in gas–liquid two-
E. Nazemi   +4 more
doaj   +3 more sources

Overview of Void Fraction Measurement Techniques, Databases and Correlations for Two-Phase Flow in Small Diameter Channels

open access: yesFluids, 2020
Void fraction is one of the most important parameters for the modeling and characterization of two-phase flows. This manuscript presents an overview of void fraction measurement techniques, experimental databases and correlations, in the context of ...
Álvaro Roberto Gardenghi   +5 more
doaj   +1 more source

Damage evolution of 7075 aluminum alloy basing the Gurson Tvergaard Needleman model under high temperature conditions

open access: yesJournal of Materials Research and Technology, 2022
Based on the Gurson-Tvergaard-Needleman (GTN) damage model, the damage evolution and ductile fracture of 7075 aluminum alloy sheets during the tensile process were predicted. First, the true stress–strain curve and micro morphology of 7075 aluminum alloy
Hongchao Ji   +4 more
doaj   +1 more source

Two-phase distribution in the vertical flow line of a domestic wet central heating system [PDF]

open access: yes, 2013
The theoretical and experimental aspects of bubble distribution in bubbly two-phase flow are reviewed in the context of the micro bubbles present in a domestic gas fired wet central heating system.
Brunel University   +3 more
core   +4 more sources

Low and High Surface Brightness Galaxies at Void Walls [PDF]

open access: yes, 2012
We study the relative fraction of low and high surface brightness galaxies (LSBGs and HSBGs) at void walls in the SDSS DR7. We focus on galaxies in equal local density environments.
Abazajian   +42 more
core   +2 more sources

Predicting Average Void Fraction and Void Fraction Uncertainty in Fixed Beds of Poly Lobed Particles [PDF]

open access: yesIndustrial & Engineering Chemistry Research, 2019
Random packed beds of cylindrical, trilobic, and quadrilobic particles in cylindrical and biperiodic containers are numerically studied using Grains3D, a code based on the discrete element method (...
Rolland, Matthieu   +5 more
openaire   +4 more sources

Void Fraction Measurement System for Steady State Horizontal Two Phase Liquid Nitrogen Flow [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2021
A cryogenic flow set-up has been designed and realized, that aimed at investigating experimentally the two-phase flow void fraction of liquid nitrogen in horizontal configurations.
SINGH G. K.   +6 more
doaj  

Investigation on the Characteristics of Flowing Refrigerant in Household Air-Conditioning Heat Exchanger [PDF]

open access: yesSHS Web of Conferences, 2023
Most refrigerant quantities exist in condenser and evaporator for a household air-conditioner. Slip ratio and void fraction are typical parameters in two-phase region of air-conditioning heat exchanger.
Su Shunyu, Li Nanxing
doaj   +1 more source

Analytical prediction of void distribution and a minimum-void angle in anisotropic fabrics for radial injection resin transfer molding

open access: yeseXPRESS Polymer Letters, 2016
2D radial injection vacuum-assisted resin transfer molding experiments were performed using anisotropic plainwoven fabrics to determine the void distribution and the relationship between the void fraction and the resin flow velocity at arbitrary resin ...
R. Matsuzaki   +4 more
doaj   +1 more source

A gas kick early detection method outside riser based on Doppler ultrasonic wave during deepwater drilling

open access: yesPetroleum Exploration and Development, 2020
The feasibility of gas kick early detection outside the riser was analyzed based on gas-liquid multiphase flow theory. Then an experimental platform for gas kick early detection based on Doppler ultrasonic wave was established and the propagation ...
Bangtang YIN   +8 more
doaj   +1 more source

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