Critical review of vertical gas-liquid slug flow: An insight to better understand flow hydrodynamics' effect on heat and mass transfer characteristics

SG Holagh, WH Ahmed - International Journal of Heat and Mass Transfer, 2024 - Elsevier
Slug flow is a dynamically complex two-phase flow pattern. A wide variety of industrial gas-
liquid systems operate under slug flow conditions for not only flow transportation purposes …

Flow pattern transition in pipes using data-driven and physics-informed machine learning

AM Quintino, DLLN da Rocha… - Journal of Fluids …, 2021 - asmedigitalcollection.asme.org
Flow pattern is an important engineering design factor in two-phase flow in the chemical,
nuclear, and energy industries, given its effects on pressure drop, holdup, and heat and …

Numerical simulation of the evaporator in two–phase thermosyphon loop for passive containment cooling system

X Yin, X Wu, S Zhou, X Zhu, N Wang - Annals of Nuclear Energy, 2023 - Elsevier
This study applied experimental data as numerical simulation input conditions to calculate
the evaporator operating states of a two–phase thermosyphon loop for a passive …

Local flow dynamics in the motion of slug bubbles in a flowing mini square channel

R Azadi, DS Nobes - International Journal of Heat and Mass Transfer, 2021 - Elsevier
For a slug flow flowing in a square capillary, the surrounding liquid flows through a thin film
between the slug bubble and the wall and the corners of the channel and generates an …

Understanding two‐phase flow behaviour: CFD Assessment of silicone oil–air and water–air in an intermediate vertical pipe

P Mondal, SK Lahiri, KC Ghanta - The Canadian Journal of …, 2024 - Wiley Online Library
The study utilized computational fluid dynamics (CFD) simulations employing the volume of
fluid (VOF) model to analyze silicone oil–air flows in a vertical pipe with a diameter of 67 …

On the three-dimensional features of a confined slug bubble in a flowing square capillary

R Azadi, D Nobes - Physics of Fluids, 2021 - pubs.aip.org
The motion of long bubbles in tubular capillaries has typically been described by bulk
characteristics. However, the dynamics of slug bubbles in square capillaries are more …

[PDF][PDF] Prediction of optimum length to diameter ratio for two-phase fluid flow development in vertical pipes

J Chidamoio, L Akanji, R Rafati - Advances in Petroleum …, 2017 - aura.abdn.ac.uk
We investigate, via numerical simulation technique, the effect of length-to-diameter ratio on
transient air-water two-phase flow in vertically upward cylindrical pipe geometry for …

Numerical investigation of upward air-water annular, slug and bubbly flow regimes

M Hassani, M Bagheri Motlagh… - … of Computational & …, 2020 - jcarme.sru.ac.ir
In this paper, numerical investigation of upward two phase flow of air-water has been
studied. Different conditions of flow regimes including annular, wispy annular, slug, churn …

Establishment and verification of a two-phase flow distribution model in a parallel flow heat exchanger

X XU, J XIAO, L Chen, C Liu - CIESC Journal, 2018 - hgxb.cip.com.cn
The flow mal-distribution of the refrigerant will have great influence on the heat transfer
performance of parallel flow heat exchanger. This paper presents a new two-phase flow …

Numerical simulation of upward co-current gas-liquid two-phase flow in the vertical pipes of large diameter, by volume of fluid method

SY Adljo, M Ansari, M Zarei… - Modares Mechanical …, 2017 - mme.modares.ac.ir
In the present study, flow regimes of co-current, air-water two-phase flow in a vertical tube
with 70 mm internal diameter were investigated. Simulation was accomplished by open …