Interfacial friction factor determination using CFD simulations in a horizontal stratified two-phase flow

Sidi-Ali, Kamel; Gatignol, Renée

doi:10.1016/j.ces.2010.06.015

Cited by 22 publications

(8 citation statements)

References 11 publications

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“…Sidi‐Ali and Gatignol 26 investigated the gas–wall friction factor of a stratified two‐phase flow using the CFD modules. Banafi and Talaie 15 compared the computational results and a set of experimental data.…”

Section: Mathematical Modelmentioning

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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Section: Mathematical Modelmentioning

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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“…The deviations of prediction calculated by the MW and SSW k-ε models were 27.35% and 18.78%, respectively; therefore, the SSW k-ε model is the best model to predict interface shear stress. Consequently, k-ε models are chosen by most CFD studies to determine interface shear stress (Issa, 1988;Meknassi et al, 2000;Liu, 2008;Sidi-Ali and Gatignol, 2010). From the above comparisons and analyses, the modified model based on the TF model for calculating gas-wall shear stress (Eq.…”

Section: Predictions Of Gas-wall and Interface Shear Stressesmentioning

confidence: 99%

Prediction of Turbulent–Turbulent Stratified Gas–Liquid Flow in Horizontal Pipe Using CFD-Generated Specified Shear Wall Method

Ping

Zhao

Chen

2019

J. Chem. Eng. Japan

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The prediction of interface shear stress is one of the great challenges of strati ed gas-liquid ow in a horizontal pipe. In this work, a new method is proposed to predict interface shear stress, in which the gas-liquid interface is regarded as a at speci ed shear wall (SSW). The gas ow is numerically simulated under the same conditions as those in Strand's experiments, the gas-wall and interface shear stress correlations are then modi ed, and a new Kowalski-type equation of liquid-wall shear stress is presented. Di erent models are adopted to obtain the gas ow velocity and gas-wall, interface, and liquid-wall shear stresses, and the results are compared with the experimental data and analyzed. The results show that the gas-wall shear stress is well predicted by the SSW k-ω model, the interface shear stress is well predicted by the SSW k-ε model, and the liquid-wall shear stress is well predicted by both the two-uid model and the Kowalskitype equation. The predictions of liquid holdup and pressure drop of the SSW method improved and agreed better with the experimental data when the gas Reynolds numbers were 9000≤Re G ≤50000 and the liquid Reynolds numbers were 15000≤Re L ≤30000.

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“…It is designed for two or more immiscible fluids where the position of the interface between the fluids is of interest. VOF is commonly used by researchers to model stratified flow, two-phase flow, and free surface flow [14][15][16]. Meanwhile, the realizable k-ε turbulence model of Shih et al (1995) [17] was selected in this study, due to its superior performance in jet flow and have proven by Ozan & Yüksel (2010) and Farzad & Hamed (2010) [18,19].…”

Section: Computational Fluids Dynamics Setupmentioning

confidence: 99%

“…The half pipe model simplifies the two-phase flow into a single gas phase flow. In this model, only the gas phase is simulated, and the liquid phase was treated as a moving wall at the bottom [14]. However, this model ignored the interaction between the gas and liquid phases, since one phase (liquid phase) was ignored.…”

Section: Boundary Conditionsmentioning

confidence: 99%

Experimental and CFD Modelling: Impact of the Inlet Slug Flow on the Horizontal Gas–Liquid Separator

et al. 2018

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For a gas-liquid separator sizing, many engineers have neglected the flow pattern of incoming fluids. The impact of inlet slug flow which impeded onto the separator’s liquid phase will cause a separator fails to perform when sloshing happened in the separator. To date, the study on verifying the impact of inlet slug flow in a separator remains limited. In this paper, the impact of inlet momentum and inlet slug flow on the hydrodynamics in a separator for cases without an inlet device were investigated. The experimental and Computational Fluid Dynamics (CFD) results of cavity formation and sloshing occurrence in the separator in this study were compared. A User Defined Function (UDF) was used to describe the inlet slug flow at the separator inlet. Inlet slug flow occurred at inlet momentum from 200 to 1000 Pa, and sloshing occurred in the separator at 1000 Pa. Both experimental and simulated results showed similar phenomena.

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Interfacial friction factor determination using CFD simulations in a horizontal stratified two-phase flow

Cited by 22 publications

References 11 publications

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

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

Prediction of Turbulent–Turbulent Stratified Gas–Liquid Flow in Horizontal Pipe Using CFD-Generated Specified Shear Wall Method

Experimental and CFD Modelling: Impact of the Inlet Slug Flow on the Horizontal Gas–Liquid Separator

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