Two-Phase Slug Flow

Griffith, P.; Wallis, G.B.

doi:10.1115/1.3682268

Cited by 344 publications

(149 citation statements)

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“…Thus it can be used to discuss the effect of the tube diameter on the transition. The shaded area represents the experimental data published by different authors (the boundary proposed by Griffith and Wallis [1961] gives too low transition superficial gas velocities and has not been considered here).…”

Section: Phase Arrangement and Stability Of Annular Flowsmentioning

confidence: 99%

Stability of annular flow and slugging

Joseph

Bannwart

Liu

1996

International Journal of Multiphase Flow

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In this work we propose an effective viscosity criterion for the stabilization of annular gas-liquid and liquid-particle flows and an inertial mechanism which drives waves into slugs in slugging gas-liquid flows. Annular flow is stable when the fluid having the higher effective viscosity occupies the core region and the lower viscosity fluid is the annulus. The eddy viscosity criterion is shown to be very consistent with published work on annular flow transitions in horizontal and vertical gas-liquid flows. It also applies to a variety of liquid-solid and gas-solid flows. In the second part of the paper we propose a mechanism for explaining the growth of initially small waves and initiation of slugs in gas-liquid flow.

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Section: Phase Arrangement and Stability Of Annular Flowsmentioning

confidence: 99%

Stability of annular flow and slugging

Joseph

Bannwart

Liu

1996

International Journal of Multiphase Flow

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“…A second relation is available from the Drift Flux equation, which has been found (Ref. 4) to characterize bubbly and slug flow, as given in Equation 3.…”

Section: Theory Of the Air-lift Bubblermentioning

confidence: 99%

“…For highly viscous fluids, the terminal bubble velocity may be taken as the Stokes flow velocity, [4] where d is the bubble diameter, ∆ρ, is the density difference between liquid and gas, and µ is the liquid viscosity. Thus, theoretically, the void fraction can be related to glass mass flow rate if Equations 3 and 4 apply to glass.…”

Section: Theory Of the Air-lift Bubblermentioning

confidence: 99%

DWPF Melter Air-Lift Bubbler: Development and Testing for Increasing Glass Melt Rates and Waste Dissolution

Bickford¹

2002

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“…Slug flow (or Taylor flow) is a two-phase flow regime recognizable by capsule-shaped elongated bubbles that separate portions of liquid forming a scenario of high void fraction and large surface-areato-volume ratio [1], [2]. The mutual and quasiperiodic interaction among the bubbles occurring in this regime impacts directly mass transfer processes taking place mainly in gas-liquid flows.…”

Section: Introductionmentioning

confidence: 99%

Comparative CFD simulations of gas transport in slug flow from periodic arrays with single or multiple bubbles

Oliveira

Mangiavacchi

Pontes

et al. 2016

JCIS

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This paper presents a comparative study of transport effects in slug flows through numerical models established upon volume-preserving periodic arrays of bubbles. The behaviour of the flow is investigated under an adiabatic laminar regime as usually found in microchannels, as well as in microscale fluid applications. Full 3D Direct Numerical Simulations (DNS) are performed for three different cases of setups containing both single and multiple bubbles. Profiles of the bubbles' centroidal velocity are compared, as with the average mass flow rates calculated over the periodic boundaries of the domain.

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Two-Phase Slug Flow

Cited by 344 publications

References 0 publications

Stability of annular flow and slugging

Stability of annular flow and slugging

DWPF Melter Air-Lift Bubbler: Development and Testing for Increasing Glass Melt Rates and Waste Dissolution

Comparative CFD simulations of gas transport in slug flow from periodic arrays with single or multiple bubbles

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