Numerical Modelization of the Flow in Centrifugal Pump: VoluteInfluence in Velocity and Pressure Fields

Asuaje, Miguel; Bakir, Farid; Kouidri, S.; Kenyery, Frank; Rey, Robert

doi:10.1155/ijrm.2005.244

Cited by 72 publications

(47 citation statements)

References 14 publications

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“…Using a 3D CFD code with the frozen-rotor interface model, the internal flow inside centrifugal pumps can be simulated, including velocity and pressure fields [86][87][88] as well as flow recirculation and separation [89,90]. The frozen-rotor model is considered as steady-state simulation because it holds the rotating and stationary parts in two separate reference frames.…”

Section: Three-dimension Computational Fluid Dynamics (Cfd)mentioning

confidence: 99%

A Review of Experiments and Modeling of Gas-Liquid Flow in Electrical Submersible Pumps

Zhu

Zhang

2018

Energies

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As the second most widely used artificial lift method in petroleum production (and first in produced amount), electrical submersible pump (ESP) maintains or increases flow rate by converting kinetic energy to hydraulic pressure of hydrocarbon fluids. To facilitate its optimal working conditions, an ESP has to be operated within a narrow application window. Issues like gas involvement, changing production rate and high oil viscosity, greatly impede ESP boosting pressure. Previous experimental studies showed that the presence of gas would cause ESP hydraulic head degradation. The flow behaviors inside ESPs under gassy conditions, such as pressure surging and gas pockets, further deteriorate ESP pressure boosting ability. Therefore, it is important to know what parameters govern the gas-liquid flow structure inside a rotating ESP and how it can be modeled. This paper presents a comprehensive review on the key factors that affect ESP performance under gassy flow conditions. Furthermore, the empirical and mechanistic models for predicting ESP pressure increment are discussed. The computational fluid dynamics (CFD)-based modeling approach for studying the multiphase flow in a rotating ESP is explained as well. The closure relationships that are critical to both mechanistic and numerical models are reviewed, which are helpful for further development of more accurate models for predicting ESP gas-liquid flow behaviors.

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Section: Three-dimension Computational Fluid Dynamics (Cfd)mentioning

confidence: 99%

A Review of Experiments and Modeling of Gas-Liquid Flow in Electrical Submersible Pumps

Zhu

Zhang

2018

Energies

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“…They concluded that the double-volute is superior, since it significantly decreases the radial force in comparison with the single volute, and it has a more compact radial size than the vaned volute. Asuaje, Bakir, Kouidri, Kenyery, and Rey (2005) analyzed a centrifugal pump with a specific speed of N S = 32 using CFX code. In their study, the three well-known k -ε, k -ω, and SST turbulence models were employed.…”

Section: Introductionmentioning

confidence: 99%

Development of new “multivolute casing” geometries for radial force reduction in centrifugal pumps

Alemi

Nourbakhsh

Raisee

et al. 2015

Engineering Applications of Computational Fluid Mechanics

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Large radial force causes several issues in pumps, such as noise, vibration, and extra load on the bearings. To reduce the radial force, the effects of concentric volute and multivolute geometry on the head, efficiency, and radial force of a low speed centrifugal pump at off-design conditions were investigated. Commercial software with the k -ω turbulence model and automatic near wall treatment was employed for the prediction of fluid flow inside the pump. Flow simulations for three casings concentric at 180°, 270°, and 360°from the tongue showed that the 270°concentric volute generates the lowest radial force at throughout the entire range of flow rate. The triple-volute and tetravolute casings are also proposed as new volute geometries. The flow analysis of a double-volute, triple-volute, and tetravolute show that the triple-volute is the most appropriate volute geometry at off-design conditions.

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“…This can be done by accounting for the volute and/or the diffuser in the planning, design, and optimization phases at conditions of design and off-design. Many experimental and numerical studies have been carried out on the liquid flow through a centrifugal pump [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21], where the effects of the number of impeller blades on the pump's performance were examined experimentally in [11,12]. The effects of the impeller outlet blade angle on the pump's performance were also investigated numerically [13,14], using a CFD code and experimentally in [15].…”

Section: Introductionmentioning

confidence: 99%

“…The effects of the impeller outlet blade angle on the pump's performance were also investigated numerically [13,14], using a CFD code and experimentally in [15]. In [16] the dynamic effects due to the impeller-volute interaction within a centrifugal pump were numerically investigated, whereas the effects of the volute on velocity and pressure fields were examined in [17,18]. Additional experimental investigation carried out [19] consisted of measuring unsteady velocity, the pressure and flow angle at the centrifugal pump's impeller outlet, with and without volute casing.…”

Section: Introductionmentioning

confidence: 99%

Numerical Identification of Key Design Parameters Enhancing the Centrifugal Pump Performance: Impeller, Impeller-Volute, and Impeller-Diffuser

Djerroud

Ngoma

Ghié

2011

ISRN Mechanical Engineering

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This paper presents the numerical investigation of the effects that the pertinent design parameters, including the blade height, the blade number, the outlet blade angle, the blade width, and the impeller diameter, have on the steady state liquid flow in a three-dimensional centrifugal pump. Three cases were considered for this study: impeller, combined impeller and volute, and combined impeller and diffuser. The continuity and Navier-Stokes equations with the k-ε turbulence model and the standard wall functions were used by means of ANSYS-CFX code. The results achieved reveal that the selected key design parameters have an impact on the centrifugal pump performance describing the pump head, the brake horsepower, and the overall efficiency. To valid the developed approach, the results of numerical simulation were compared with the experimental results considering the case of combined impeller and diffuser.

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Numerical Modelization of the Flow in Centrifugal Pump: VoluteInfluence in Velocity and Pressure Fields

Cited by 72 publications

References 14 publications

A Review of Experiments and Modeling of Gas-Liquid Flow in Electrical Submersible Pumps

A Review of Experiments and Modeling of Gas-Liquid Flow in Electrical Submersible Pumps

Development of new “multivolute casing” geometries for radial force reduction in centrifugal pumps

Numerical Identification of Key Design Parameters Enhancing the Centrifugal Pump Performance: Impeller, Impeller-Volute, and Impeller-Diffuser

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