Modeling and simulation of the gas-liquid separation process in an axial flow cyclone based on the Eulerian-Lagrangian approach and surface film model

Deng, Yajun; Lin, Zhang; Hou, Hao; Yu, Bo; Sun, Dongliang

doi:10.1016/j.powtec.2019.05.039

Cited by 39 publications

(6 citation statements)

References 32 publications

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“…The EWF model can calculate the flow of the film when water drops splash and adhere to the wall surface by simplifying the fluid film [15]. When coupled with the Eulerian Multiphase Flow model, it can better reflect the collisions of gas on the wall and the flow of the film [15,16]. Ding et al [15] studied the gas-liquid separation of supersonic separators using the Eulerian-Lagrange method coupled with the EWF model, considering the phase transition between the phases and the liquid film; they analyzed the sensitivity of the separation efficiency to the inlet pressure, non-uniform water-drop diameter, and inlet water-drop concentration, and explored the optimal inlet water-drop diameter and concentration to improve the separation efficiency of the separator.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Water-Drop Impact on Low-Drag Airfoil Using the Euler–Euler Approach and Eulerian Wall Film Model

et al. 2023

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The Eulerian Wall Film (EWF) model is a mathematical model employed to analyze the behavior of fluid films on a surface. The model has been widely adopted in various engineering applications due to its accuracy and efficiency. However, it is rarely applied in the aerospace field. The solution of the water-drop impact constitutes an indispensable prerequisite for the computation of ice accretion on the exterior of aircraft wings. In this study, we propose a novel approach for the estimation of water-drop impact on wing surfaces by integrating the Euler–Euler approach and EWF model. This approach is capable of furnishing a point of reference and a theoretical foundation for prospective water-drop impact experiments. Through comparison with pertinent experimental findings, the precision of the numerical simulation approach utilized in this paper is substantiated. Specifically, the research object is the NACA653-218 airfoil of the C-919 transport aircraft, for which the aerodynamic properties, water-drop collision, and liquid film flow characteristics during steady flight were simulated.

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Water-Drop Impact on Low-Drag Airfoil Using the Euler–Euler Approach and Eulerian Wall Film Model

et al. 2023

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“…Up to now, four feasible numerical methods have been demonstrated in the literature, namely, the Euler-Euler method, the Euler-Lagrange method, the Euler-Euler-Euler method, and the Euler-Lagrange-Euler method [18] . Both the gas phase and the droplets are treated as continuous phases by the Euler-Euler approach and solved using Euler's equations.…”

Section: Introductionmentioning

confidence: 99%

“…A separator structure more suitable for the PEMFC system was obtained. Deng et al [18] successfully simulated the gas-liquid separation process in an axial flow cyclone using the Euler-Lagrangian method and the film model. The results indicated that the liquid film would cover the entire separation segment space over time.…”

Section: Introductionmentioning

confidence: 99%

A modified Euler-Lagrange-Euler approach for modelling homogeneous and heterogeneous condensing droplets and films in supersonic flows

Ding

Yang

Wen

2023

International Journal of Heat and Mass Transfer

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“…An interesting computational fluid dynamics (CFD) analysis of the flow pattern is developed in [10], where a mixture of gas is studied for different diplegs producing cyclonic dynamics. In [11], the separation of a gas-liquid two-phase flow is modeled and analyzed with CFD tools by considering a cone as a cyclonic generator; also, the dynamics of a cyclone separator with helical fins is studied by CFD in [12]. In [13], the cyclonic phenomenon is also studied for an absorption separator of ammonia from a liquid solution.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Analysis of Gas Reduction in Multiphase Flow with a KMS Helical Static Mixer

et al. 2022

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The separation dynamics of a multiphase fluid mixture is studied with the aim to validate the gas reduction from the mixture by means of a KMS helical static mixer device through a laboratory prototype based on the jet-pump artificial lift system for oil extraction. The study is focused on the cyclone phenomenon, produced by the KMS, to experimentally verify the reduction of foaming in a reservoir behaving as a horizontal gravity separator of an oil–gas–water mixture under specific dynamics conditions of velocity and pressure of an incoming streamline, as well as some physical mounting configurations of the device. The results were numerical and experimentally validated, projecting the real performance in three-phase separators in an oil extraction field to improve efficiency in pumping machines regarding the negative effects of the gas. Concerning the gas reduction, a KMS of two elements located at 100 mm from the entrance of the horizontal reservoir and 20 mm from a gas casing tube successfully improves the gas isolation from the mixture, from 29.2% to practically 0% over 200 min in the reservoir, to let oil and water become separated by sedimentation. This gas reduction is indirectly assessed by the emulsion that is generated, which affects the time of oil separation in the counterbalance.

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Modeling and simulation of the gas-liquid separation process in an axial flow cyclone based on the Eulerian-Lagrangian approach and surface film model

Cited by 39 publications

References 32 publications

Numerical Investigation of the Water-Drop Impact on Low-Drag Airfoil Using the Euler–Euler Approach and Eulerian Wall Film Model

Numerical Investigation of the Water-Drop Impact on Low-Drag Airfoil Using the Euler–Euler Approach and Eulerian Wall Film Model

A modified Euler-Lagrange-Euler approach for modelling homogeneous and heterogeneous condensing droplets and films in supersonic flows

An Experimental Analysis of Gas Reduction in Multiphase Flow with a KMS Helical Static Mixer

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