Results 1 to 10 of about 5,504,954 (280)

Practical aspects of multiphase slug frequency: An overview

open access: yesCanadian Journal of Chemical Engineering
Abstract Slug frequency, the number of liquid slugs passing through a point per unit of time, is an intrinsic parameter that is used to characterize multiphase slug flows in pipes. In this review we discuss practical aspects of slug frequency for industrial purposes from an examination of published literature and available ...
Abderraouf Arabi
exaly   +3 more sources

A Review of the Measurement of the Multiphase Slug Frequency

open access: yesProcesses
The slug frequency (SF), which refers to the number of liquid slugs passing through a pipe during a specific time, is an important parameter for characterizing the multiphase intermittent flows and monitoring some process involving this kind of flow. The simplicity of the definition of SF contrasts with the difficulty of correctly measuring it.
Youssef Stiriba   +2 more
exaly   +3 more sources

Two-phase slug flows in helical pipes: Slug frequency alterations and helicity fluctuations [PDF]

open access: yesInternational Journal of Multiphase Flow, 2016
Abstract Air-water numerical simulations in the slug flow regime have been performed in horizontal helical pipes and the effects of geometries on the flow regime have been investigated. Depending on the length of the helix, outlet slug frequencies have been reduced with various degrees of efficiency.
Patrick Verdin
exaly   +5 more sources

Effects of low frequency external excitation on oil slug mobilization and flow in a water saturated capillary model

open access: yesPetroleum, 2019
The present research is to experimentally study the joint effects of external pressure and vibratory excitations of low frequency on oil slug mobilization and flow in a capillary model.
Liming Dai, Yihe Zhang
doaj   +4 more sources

Characterization of Gas–Liquid Two-Phase Slug Flow Using Distributed Acoustic Sensing in Horizontal Pipes [PDF]

open access: yesSensors
This article discusses the use of distributed acoustic sensing (DAS) for monitoring gas–liquid two-phase slug flow in horizontal pipes, using standard telecommunication fiber optics connected to a DAS integrator for data acquisition. The experiments were
Sharifah Ali, Ge Jin, Yilin Fan
doaj   +3 more sources

Flow Regime, Slug Frequency and Wavelet Analysis of Air/Newtonian and Air/non-Newtonian Two-Phase Flow

open access: yesApplied Sciences, 2020
This study focused on gas/Newtonian and gas/non-Newtonian two-phase horizontal fluid flow behavior by analyzing their flow regime identification and flow structural analysis on a horizontal flow loop apparatus.
Munzarin Morshed   +3 more
doaj   +2 more sources

On gas-liquid intermittent flow in a horizontal pipe: Influence of sub-regime on slug frequency

open access: yesChemical Engineering Science, 2020
Among the intrinsic parameters identified in intermittent gas-liquid flows; slug frequency is known as the most complicated one to model. The present work concerns the investigation of slug frequency for various sub-regimes which might be found in ...
Yacine Salhi
exaly   +2 more sources

Analysis of slug-tests with high-frequency oscillations [PDF]

open access: yesJournal of Hydrology, 2007
Extensive slug-test experiments have been performed at the Hydrogeological Experimental Site (HES) of Poitiers in France, made up of moderately fractured limestones. All data are publicly available through the "H+" database, developed within the scope of the ERO program (French Environmental Research Observatory, http://hplus.ore.fr).
Jacques Bodin
exaly   +2 more sources

Experimental and Numerical Study of Slug-Flow Velocity Inside Microchannels Through In Situ Optical Monitoring [PDF]

open access: yesMicromachines
Miniaturization and reliable, real-time, non-invasive monitoring are essential for investigating microfluidic processes in Lab-on-a-Chip (LoC) systems. Progress in this field is driven by three complementary approaches: analytical modeling, computational
Samuele Moscato   +3 more
doaj   +2 more sources

A Probabilistic Approach for Predicting Average Slug Frequency in Horizontal Gas/Liquid Pipe Flow

open access: yesOil & Gas Science and Technology, 2013
In this paper, we present a model for predicting the average slug frequency in horizontal gas/liquid pipe flow. The model considers the probability of slug formation if slugs are triggered at the antinodes of a sinusoidal perturbation,
Kadri U.
doaj   +2 more sources

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