Experimental and Theoretical Study of Interface Characteristics of Gas–Liquid Stratified Flow in Horizontal Pipe at High Pressure

Wang, Yübo; Chang, Yingjie; Liu, Zhigang; Zhao, Xiangyuan; Guo, Liejin

doi:10.1007/s10494-020-00116-2

Cited by 5 publications

(4 citation statements)

References 23 publications

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“…There are two types of stratified flow, namely stratified smooth and stratified wavy. This type of flow is highly dependent on the gravitational forces acting on them where the phases inside the pipe are segregated based on their density, lighter phase flow above the heavier phase [46]. This type of flow usually occurs in low liquid and gas superficial velocity which leads to a clear distinct interface formed throughout the test section.…”

Section: Stratified Flowmentioning

confidence: 99%

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Experimental investigation of gas-brine liquid flow in horizontal pipeline

et al. 2020

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Section: Stratified Flowmentioning

confidence: 99%

“…As superficial gas velocities increase, the smooth horizontal interface become agitated and destabilized resulting a wavy surface flowing in the direction of the flow between the gas-liquid interface [46]. However, the amplitude of the wave are not large enough to touch the ceiling of the pipe or break the air flow [41].…”

Section: Stratified Flowmentioning

confidence: 99%

Experimental investigation of gas-brine liquid flow in horizontal pipeline

et al. 2020

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“…Wang et al [26] studied the air-water two-phase flow in a horizontal pipe for a range of high pressures and obtained the flow pattern maps. Obviously, the flow pattern is impacted by the fluid velocities that the liquid expansion in circumference in the annular flow test; the flow regime transitions to stratified or intermittent flow with the changing gas/liquid phase velocity.…”

Section: Introductionmentioning

confidence: 99%

A Novel Model for the Prediction of Liquid Film Thickness Distribution in Pipe Gas-Liquid Flows

Wang,

Yu,

Wang

et al. 2024

FDMP

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A model is proposed for liquid film profile prediction in gas-liquid two-phase flow, which is able to provide the film thickness along the circumferential direction and the pressure gradient in the flow direction. A two-fluid model is used to calculate both gas and liquid phases' flow characteristics. The secondary flow occurring in the gas phase is taken into account and a sailing boat mechanism is introduced. Moreover, energy conservation is applied for obtaining the liquid film thickness distribution along the circumference. Liquid film thickness distribution is calculated accordingly for different cases; its values are compared with other models and available experimental data. As a result, the newly proposed model is tested and good performances are demonstrated. The liquid film thickness distribution in small pipes and inclined pipes is also studied, and regime transition is revealed by liquid film profile evolution. The observed inflection point demonstrates that the liquid film thickness decreases steeply along the circumference, when the circle angle ranges between 30°and 50°for gas-liquid stratified flow with small superficial velocities.

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“…Moreover, there is some correlation between interface wave and interfacial friction factor, and the processes of wave formation and growth are affected by the inclination angle. Wang et al 18,19 noted that the shear stress working on the interface is influenced by the characteristics of interface waves and parameters of fluid flow over the interface in horizontal pipes. Fershtman et al 20 and Al‐Sarkhi et al 21 pointed out that the wave properties (such as wave height distribution, wave frequency spectra, wave propagation velocities, etc.)…”

Section: Introductionmentioning

confidence: 99%

A prediction model for the critical gas velocity and pressure gradient of continuous liquid‐carrying in inclined pipes

et al. 2021

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A generic model for the prediction of critical gas velocity and pressure gradient in slightly inclined pipes (β ≤ 6°) is presented in this article. The gas–liquid configuration was determined based on the minimum energy principle and consideration of wettability and surface tension. A visualization experiment was conducted to obtain the critical gas velocity and the critical pressure gradient of a gas–liquid flow through the 40 and 60‐mm pipe diameter. The theoretical study shows that the configuration is close to a convex interface shape at the critical conditions, which is in accord with the experimental phenomenon. Experimental study shows interfacial waves are the main cause of increased interfacial friction factor and a linear functional relationship between the inclination angle and the flow correction factor f(β). The results demonstrate that the new model is capable of providing satisfactory prediction results for the critical gas velocity, pressure drop, and liquid holdup.

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Experimental and Theoretical Study of Interface Characteristics of Gas–Liquid Stratified Flow in Horizontal Pipe at High Pressure

Cited by 5 publications

References 23 publications

Experimental investigation of gas-brine liquid flow in horizontal pipeline

Experimental investigation of gas-brine liquid flow in horizontal pipeline

A Novel Model for the Prediction of Liquid Film Thickness Distribution in Pipe Gas-Liquid Flows

A prediction model for the critical gas velocity and pressure gradient of continuous liquid‐carrying in inclined pipes

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