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   Articles with "annular flow" as a keyword



Annular flow dynamic characteristics of two inverse coaxial rotational cones

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recommendations! Published in 2019 at "Journal of Visualization"

DOI: 10.1007/s12650-019-00570-9

Abstract: AbstractDye liquid visualization and PIV experiments were conducted to reveal the influence of the Reynolds number (Re) and the presence of an end plate at the upper boundary on the annular flow dynamics characteristics of… read more here.

Keywords: annular flow; vortex; characteristics two; two inverse ... See more keywords

Evaluation of prediction methods for heat transfer coefficient of annular flow and a novel correlation

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recommendations! Published in 2017 at "Applied Thermal Engineering"

DOI: 10.1016/j.applthermaleng.2016.11.170

Abstract: Abstract Flow boiling heat transfer of annular flow is very important to the thermal design of evaporating heat exchanger. In this study, an experimental heat transfer coefficient database containing 2783 data points is built from… read more here.

Keywords: heat; annular flow; transfer coefficient; heat transfer ... See more keywords

The effect of swirl on transition from churn flow to annular flow in an intermediate diameter pipe

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recommendations! Published in 2019 at "Experimental Thermal and Fluid Science"

DOI: 10.1016/j.expthermflusci.2019.109861

Abstract: Abstract Swirling annular flow has been widely used in industries. The transition boundary of swirling annular flow which is important for its application in practice is rarely studied in published works. In this work, the… read more here.

Keywords: transition churn; churn flow; flow; annular flow ... See more keywords

Wave characteristics of vertical upward adiabatic annular flow in pipes

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recommendations! Published in 2019 at "International Journal of Heat and Mass Transfer"

DOI: 10.1016/j.ijheatmasstransfer.2019.118701

Abstract: Abstract Annular flow exists in many engineering applications, such as refrigerators, oil extraction, nuclear reactors and so on, due to its high heat and mass transfer efficiencies. Annular flow is characterized by liquid film on… read more here.

Keywords: annular flow; wave characteristics; gas; film thickness ... See more keywords

Suppression of nucleate boiling in upward two-phase annular flow: A direct measurement using modern diagnostics

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recommendations! Published in 2020 at "International Journal of Heat and Mass Transfer"

DOI: 10.1016/j.ijheatmasstransfer.2020.120143

Abstract: Abstract In heat exchangers employing flow boiling, e.g., boiling water reactors and industrial boilers, the heat transfer mechanism will transition from nucleate boiling to forced convective evaporation as the flow pattern transition from bubbly to… read more here.

Keywords: annular flow; using modern; nucleate boiling; suppression nucleate ... See more keywords

Dynamic response of a functionally graded cylindrical shell subjected to swirling annular flow including the fluid viscous effects

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recommendations! Published in 2017 at "International Journal of Mechanical Sciences"

DOI: 10.1016/j.ijmecsci.2017.09.053

Abstract: Abstract Considering the fluid viscosity, the dynamic behavior of a functionally graded materials (FGMs) cylindrical shell conveying a swirling annular fluid in the annulus between the inner shell and the outer shell are investigated, where… read more here.

Keywords: annular flow; functionally graded; cylindrical shell; swirling annular ... See more keywords

A numerical procedure for estimating the sand erosion of elbows in annular flow with the complete thickness distribution of the liquid film

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recommendations! Published in 2019 at "Wear"

DOI: 10.1016/j.wear.2019.203085

Abstract: Abstract A numerical procedure is carried out to forecast the penetration rates of metal elbows caused by silica sand particles under air-water annular flow conditions. The procedure aims at overcoming the disadvantage of the existing… read more here.

Keywords: annular flow; numerical procedure; liquid film; procedure ... See more keywords

Numerical Simulation of the Flow Pattern of Spiral Annular Flow with a Guide Strip by Spiral On-Way

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recommendations! Published in 2022 at "ACS Omega"

DOI: 10.1021/acsomega.2c02924

Abstract: To study the gas–liquid two-phase spiral annular flow pattern and its conversion law in a horizontal tube with twist tape by spiral on-way, a numerical simulation is carried out using the RNG k-ε model, and… read more here.

Keywords: pattern spiral; annular flow; flow; spiral annular ... See more keywords

Stratified to annular flow transition due to drop entrainment in a flat minichannel

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recommendations! Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0285254

Abstract: This study deals with the experimental and numerical investigation of the transition from stratified to annular flow in a flat minichannel over a wide range of gas and liquid velocities, including turbulent conditions. It was… read more here.

Keywords: annular flow; drop entrainment; transition; entrainment ... See more keywords

Void fraction measurement using an imaging and phase isolation method in horizontal annular flow

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recommendations! Published in 2019 at "Measurement Science and Technology"

DOI: 10.1088/1361-6501/aaf8ec

Abstract: A new imaging method was proposed to measure the void fraction of annular flow based on phase isolation technology in a horizontal circular tube. As the gas–liquid mixture passes through the phase isolation device, which… read more here.

Keywords: void fraction; phase; flow; annular flow ... See more keywords

Experimental and Modeling Study on Void Fraction Using Thermal Distribution Sensor in Horizontal Annular Flow

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recommendations! Published in 2025 at "IEEE Sensors Journal"

DOI: 10.1109/jsen.2025.3554686

Abstract: The void fraction is an important parameter to characterize the characteristics of annular flow, which is an important precondition for calculating the flow velocity, average density, pressure gradient, and analyzing the flow status. Based on… read more here.

Keywords: void fraction; inline formula; annular flow; tex math ... See more keywords