Measurement and prediction of pressure drop in two-phase flow

Ferguson, M. E. G.

doi:10.1016/s0301-9322(97)88393-0

Cited by 6 publications

(8 citation statements)

References 3 publications

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“…Very few experiments have been conducted on the two-phase pressure drop in microchannels geometries. Furthermore, it has been shown that current two-phase pressure drop correlations are applicable to a limited range of quality, and large errors occur when these correlations are applied outside the intended range (Ferguson and Spedding, 1995). Therefore, taking the approach of flow regime-based correlations is necessary to more accurately predict the pressure drop in two-phase flows.…”

Section: Two-phase Pressure Dropmentioning

confidence: 99%

Flow visualization and pressure drop for refrigerant phase change and air-water flow in small hydraulic diameter geometries

Coleman

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Section: Two-phase Pressure Dropmentioning

confidence: 99%

Flow visualization and pressure drop for refrigerant phase change and air-water flow in small hydraulic diameter geometries

Coleman

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“…In subsequent years, some studies have been conducted in order to propose new experimental data and prediction correlations. It has been shown that current two phase pressure drop correlations are applicable to a limited range of experimental conditions, and large errors occur when these correlations are applied outside the intended range (Ferguson and Spedding [1], Colman [2]). Experimental pressure drops for steam water mixtures flowing through sudden contraction were reported by Geiger [3] for area ratios of 0.398, 0.253 and 0.144, as well as by McGee [4] for area ratios of (0.608 and 0.546).…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic Study Using CFD Simulations in a Horizontal Two-Phase Flow Through Sudden Contraction

Belgacem¹

2017

AJMIE

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Two-phase flows are encountered in a wide range of industrial application. In the present work, two-phase computational fluid dynamics (CFD) calculations, using Eulerian-Eulerian model and commercial CFD package FLUENT 6.3, were employed to calculate pressure drops caused by abrupt flow area contraction in small circular pipes for two-phase flow of air and water mixtures at room temperature and near atmospheric pressure. The pressure drop is determined by extrapolating the computed pressure profiles upstream and downstream of the contraction. Variables studied include: gas and liquid velocities, and pipe contraction ratio. The numerical results were validated against experimental data from the literature and are found to be in good agreement. Our findings could be useful in designing pipeline.

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“…The most commonly used two-phase flow model assumes the existence of a homogeneous mixture of liquid and gas with a pseudo density and viscosity [17] and solves the corresponding continuity, momentum and energy equations. Since the homogeneous twophase model always under-predicts the flow rate, some advanced models such as the drift flux model or slip velocity model have been developed [17,25,26]. However, due to the presence of various flow regimes at different gas-liquid mass ratios [17,23,24], the above mentioned models cannot predict the flow properties over a wide range of operating conditions using a global approach.…”

Section: Introductionmentioning

confidence: 99%

A Heuristic Model of Twin Fluid Internally Mixed Atomization using Distributed Weber Number Criterion

Kushari

2010

Part & Part Syst Charact

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This paper describes the development and predictions of a model that depicts the two-phase flow within an internally mixed air-assisted liquid atomizer using a statistical Weber number criterion. The main objective of this study is to develop an analytical tool that could be used in the design of internally mixed injectors and to predict the injector's flow and spray characteristics under different operating conditions. Basic conservation equations, along with appropriate boundary conditions, are used to model the two-phase air-liquid flow inside the injector. A statistically distributed Weber number criterion is used to estimate the sizes of the droplets being produced in the process. The liquid flow rates and mean droplet sizes, predicted by the model, are compared with the experimental data and they are found to be in fair agreement with each other.

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Measurement and prediction of pressure drop in two-phase flow

Cited by 6 publications

References 3 publications

Flow visualization and pressure drop for refrigerant phase change and air-water flow in small hydraulic diameter geometries

Flow visualization and pressure drop for refrigerant phase change and air-water flow in small hydraulic diameter geometries

Hydrodynamic Study Using CFD Simulations in a Horizontal Two-Phase Flow Through Sudden Contraction

A Heuristic Model of Twin Fluid Internally Mixed Atomization using Distributed Weber Number Criterion

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