Numerical Simulation of New Axial Flow Gas-Liquid Separator

Kou, J.; Li, Zhaoyang

doi:10.3390/pr10010064

Cited by 13 publications

(3 citation statements)

References 8 publications

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“…The purpose of the work is to analyze the possibility of using computational hydrodynamics to study the gas-liquid separator. oil and gas processing, chemical and petrochemical, construction and other industries [1,2,3,4,5]. The paper [6,7] analyzes the features of the separation process of the flow of a two-phase gas-liquid mixture, which is fed from the supply pipe to the separator.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Possibility of Modeling Gas Separators using Computational Fluid Dynamics

Mykhailiuk,

Zasadzień,

Liakh

et al. 2024

Management Systems in Production Engineering

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Today, gas-liquid separators are usually used for the purification of gas mixtures from droplet liquid, and there are many designs of which. However, in order to improve the efficiency of their work, increase throughput, reduce mass and dimensions, they are constantly being improved. Usually, developing a new or improving an existing separator design is a long-term and relatively expensive process. Today, computer programs that implement the finite element method make it possible to speed up and reduce the cost of designing both a gas separator and other equipment. FloEFD program is one of these programs. However, it is more convenient during design to use one computer program that allows you to build 3D models (CAD) and in the same program to use a module for simulating the movement of gas and liquid flows (CFD). Such a program is SolidWorks with the FlowSimulation application module. As for the physical processes that occur during the operation of gas separators, they are quite complex, since a multiphase gas flow with an existing liquid phase is simulated. In the article, simulation modeling of the C-2-1 separator was carried out and the values and distributions of velocities and pressures in its various cross-sections were determined. Special attention was paid to the following cross-sections of the separator: along the axis of its inlet pipe; in the middle is the spigot of the blade screw; on a block of blinds. The difference in pressure at the outlet and inlet of the separator was determined, which is 20267 Pa. Based on the simulation results obtained, recommendations are given for further research and optimization of the separator design. The main parameter that characterizes the degree of separation of liquid from gas in the separator is the efficiency factor, which depends on the design of the separator, thermobaric conditions, parameters of the technological scheme, composition and physical and chemical properties of the gas-liquid flow. As a result of simulated modeling of the separator, its efficiency coefficient was determined when it extracted droplet liquid from the gas-liquid mixture in its various fractions (from 0.01 to 0.1 mm). The efficiency factor is about 100%.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Possibility of Modeling Gas Separators using Computational Fluid Dynamics

Mykhailiuk,

Zasadzień,

Liakh

et al. 2024

Management Systems in Production Engineering

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“…These simplifications were considered because of the complexities related to the turbulent multiphase flow simulation. These include performing a 2-dimensional simulation (Yang et al, 2021) or using a steady-state solver (Kou and Li, 2022) for modeling downhole separators. With the aid of the self-made grid, a method for unsteady 3dimensional simulation of downhole gas-liquid separators in the real scale is presented considering the well casing annular section and a downhole plunger pump.…”

Section: Introductionmentioning

confidence: 99%

“…Previously studied geometries with vanes, spirals or helixes used a hybrid mesh for their computations (Mendez et al, 2018;Peng et al, 2018;Kou and Li, 2022;Tang et al, 2022). Using hybrid mesh rises the cells number significantly (for example, 4 million cells for 1226.5 𝑐𝑚 3 domain with a spiral section of 0.16 of the total pipe length (Rao et al, 2022)).…”

Section: Introductionmentioning

confidence: 99%

A computational fluid dynamics study for simulation of the unsteady state two-phase flow in vertical separators and plunger pumps simultaneously

Dastyar

Hajidavalloo

Rabieh

2023

Preprint

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This study aims to find a robust and reliable method to simulate unsteady state two-phase flow in the sophisticated vertical separators connected to plunger pumps using computational fluid dynamics. The unsteady nature of reciprocating pumps and vertical two-phase gas-liquid flow forces the unsteady state boundary condition to the separators. Consequently, to simulate them, the plunger pump was considered a part of geometry, and an unsteady state turbulent two-phase flow was selected for the simulation method. Due to the geometry vastness and complexity of such a problem, the mesh generation method became vital for the convergence and reliability of simulations. Among several mesh generation methods and software, a new MATLAB meshing method developed to generate structural hexahedral mesh proved to be robust and very time-efficient. First, a set of experimental data of a simple separator was used to select, tune and validate the simulation method. Then, a real sample sophisticated separator and a plunger pump were analyzed using the method. Results demonstrated the ability of the model to predict phase separation and motions and its capability for modeling two-phase flow inside the helical, gravitational, and hybrid separators together with a plunger pump. Performing simulation for three up and two down strokes of the plunger showed that after disappearing the initial condition effects, the model represents the same results and separation efficiency for all cycles of plunger movements.

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Numerical Simulation on the Effect of Blade Design Towards Pressure and Velocity in Pipeline

Nadzri,

Ahmad,

Asniza

2024

Lecture Notes in Networks and Systems

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Numerical Simulation of New Axial Flow Gas-Liquid Separator

Cited by 13 publications

References 8 publications

Analysis of the Possibility of Modeling Gas Separators using Computational Fluid Dynamics

Analysis of the Possibility of Modeling Gas Separators using Computational Fluid Dynamics

A computational fluid dynamics study for simulation of the unsteady state two-phase flow in vertical separators and plunger pumps simultaneously

Numerical Simulation on the Effect of Blade Design Towards Pressure and Velocity in Pipeline

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