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Journal articles on the topic 'Rotor of the centrifugal pump'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Han, Feng, Xionghuan Chen, Yang Yang, and Chuan Wang. "Numerical and Experimental Study on the Effect of Rotor–Stator Distance on Rotor–Stator Interaction Strength within Mixed-Flow Centrifugal Pumps." Journal of Marine Science and Engineering 10, no. 8 (2022): 1114. http://dx.doi.org/10.3390/jmse10081114.

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In this article, the influence of rotor–stator distance on the pump performance and rotor–stator interaction strength within mixed-flow centrifugal pump was investigated based on numerical calculation and test verification. Firstly, the performances of mixed-flow centrifugal pumps with two different rotor–stator distances were obtained and compared with the numerical results, which confirms the high accuracy of the numerical simulation. Next, the performances of mixed-flow centrifugal pumps with five different rotor–stator distances were compared and analyzed. It was found that the hydraulic p

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2

Dzarmotov, Sultan I., and Magomet K. Aushev. "CENTRIFUGAL PUMP ROTOR NUT." Oil and Gas Business, no. 4 (September 14, 2023): 116–26. http://dx.doi.org/10.17122/ogbus-2023-4-116-126.

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A centrifugal pump rotor is proposed with the impeller mounted on the shaft using two nuts of fixed interacting reciprocal conical surfaces. The scientific work relates to the field of pump engineering, namely, to one of the methods of locking the rotor nut used in the design of centrifugal pumps, various self-locking devices of mechanisms and structural elements of fasteners that prevent self-unscrewing. The self-locking nut includes a nut, a solid crown with an inner conical surface interacting with the annular groove of the nut itself and with an annular conical groove on the outer surface

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3

Mathew, Sathyajith, K. P. Pandey, and J. D. Burton. "The Wind-driven Regenerative Water-pump." Wind Engineering 26, no. 5 (2002): 301–13. http://dx.doi.org/10.1260/030952402321160606.

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Roto-dynamic pumps can offer attractive performance when coupled mechanically to wind rotors in shallow lift water pumping applications. However, the gearing ratio required in the transmission for such systems restricts their commercial acceptability. This problem can be reduced by selecting a pump with a very low specific speed, so that, for a particular flow and lift, the shaft need not rotate so fast. Therefore, a regenerative pump was designed and developed for wind powered water pumping applications. A semi-empirical approach was adopted for the design. Performance of the pump was evaluat

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4

Isametova, Madina, Gulbarshyn Smailova, Zhastalap Abilkaiyr, and Zhomart Ualiev. "Optimization of the operation of the centrifugal pump in the conditions of mining and industrial enterprises." Sustainable Development of Mountain Territories 16, no. 3 (2024): 1192–204. https://doi.org/10.21177/1998-4502-2024-16-3-1192-1204.

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Introduction. The article deals with the numerical analysis of the dynamics of the rotor of a centrifugal pump. Computational studies of the vibration characteristics of the centrifugal pump were carried out using modern CRADLE/Sflow and Nastran programs. Materials and methods. Various modes of liquid supply were considered, for which calculations of hydrodynamic and dynamic effects were performed in the CRADLE/Sflow program in accordance with three - dimensional numerical models. Simulation of the dynamics of the rotor of centrifugal pumps static and dynamic analysis of the effect of the imba

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5

Yuan, Jianping, Jiali Shi, Yanxia Fu, Huilong Chen, Rong Lu, and Xueliang Hou. "Analysis of Fluid-Structure Coupling Dynamic Characteristics of Centrifugal Pump Rotor System." Energies 15, no. 6 (2022): 2133. http://dx.doi.org/10.3390/en15062133.

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Safety and reliable operation is one of the most important research areas for centrifugal pump systems, due to the interaction of complex flow, large structural load, and vibration caused by the operation of the impeller. To analyze the internal flow and impeller deformation of the centrifugal pump, the single-stage single-suction centrifugal pump titled IS100-80-160 was selected as the research object. Under the principle of single variable, the turbulent flow and structural response of three impellers designed by different parameters were calculated by CFX and ANSYS Workbench. A numerical si

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6

Luo, Xiaohui, and Jie Yang. "Analysis and Research on Vibration Characteristics of Nuclear Centrifugal Pumps Rotor Rubbing Fault." Journal of Physics: Conference Series 2403, no. 1 (2022): 012014. http://dx.doi.org/10.1088/1742-6596/2403/1/012014.

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Abstract To investigate the vibration characteristics of nuclear centrifugal pumps rotor rubbing fault, the mechanical model of rotor rub is established, and the causes, types, and mechanisms of rotor rub fault are introduced. Taking the HAZ50-250 Type Horizontal single-stage centrifugal pump prototype as the object, through a reasonable test scheme, the vibration test and analysis of the rotor under different rub conditions were carried out using the Enpac2500 Dual channel spectrum analyzer, and the fault data of different rub impact degrees were collected. Combining the characteristics of vi

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7

Montoya, J. Patrick, Scott I. Merz, and Robert H. Bartlett. "Significant Safety Advantages Gained with an Improved PressureRegulated Blood Pump." Journal of ExtraCorporeal Technology 28, no. 2 (1996): 71–78. http://dx.doi.org/10.1051/ject/199628271.

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A prototype of a non-occlusive pressure-regulated blood pump (M-pump) was evaluated in-vitro for safety in a comparative study with the roller and centrifugal pumps. The M-pump consists of collapsible tubing of unique design wrapped under tension around a rotor without a stator. The prototype M-pumps were tested in vitro to evaluate performance with respect to flow/pressure characteristics, hemolysis, bubble generation (cavitation) and durability. The M-pump and centrifugal pump did not overpressurize at any RPM when the pump outlet was occluded, but the roller pump reached pressures in excess

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8

Zhang, Hehui, Haolin You, Haishan Lu, Kun Li, Zhiyong Zhang, and Liangxing Jiang. "CFD-Rotordynamics Sequential Coupling Simulation Approach for the Flow-Induced Vibration of Rotor System in Centrifugal Pump." Applied Sciences 10, no. 3 (2020): 1186. http://dx.doi.org/10.3390/app10031186.

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Vibration of the rotor system is closely related with the operation stability of centrifugal pump, and it is inevitably induced by the unsteady inner flow. An unsteady computational fluid dynamics model coupling with a rotordynamics model was presented, and the corresponding numerical calculation program, including a self-designed rotordynamics code, was developed on the commercial package ANSYS Workbench. The validity of the numerical calculation model was verified by a hydraulic performance and vibration test based on an industrial centrifugal pump. The hydraulic radial forces on impeller, p

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9

Xalikov, Abdiravub, and Farhod Matmuradov. "FUNCTIONAL ASPECTS OF PUMPS AND CENTRIFUGAL PUMP MODELS." Journal of Universal Science Research 2, no. 10 (2024): 141–54. https://doi.org/10.5281/zenodo.13921415.

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This article presents the principle of operation of a centrifugal pump and the classification of impellers. The geometric and kinematic parameters of the impeller were calculated, the spiral outlet was calculated, the axial force acting on the rotor and the radial force acting on the impeller were found. The impeller was designed based on the calculation results. A strength calculation of the shaft connection with the impeller was performed. The pump drive and the centrifugal pump model were selected.

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10

Savchuk, D. V., D. E. Bescherov, D. A. Kulikov, et al. "Ensuring vibration characteristics of reactor plant centrifugal pumping equipment." VESTNIK of Samara University. Aerospace and Mechanical Engineering 22, no. 1 (2023): 112–20. http://dx.doi.org/10.18287/2541-7533-2023-22-1-112-120.

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Requirements of low vibration and low noise level are imposed on reactor plant centrifugal pumping equipment. Computational research of vibration characteristics of centrifugal pumping is required in order to choose the optimal design alternate. Representativeness and adequacy of computational research are ensured by using verified methods of mathematical modeling. The paper presents the results of comparative analysis of various options of centrifugal pump wet end with the hydraulics master data. Hydrodynamic flow analysis was made and pump impeller loads were determined to calculate the pump

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11

Yan, Shebin, Zhifeng Ye, Dezhao Wang, Ji Ma, and Wenjie Zhou. "Structural Analysis and Optimization of Ultra-High-Speed Centrifugal Pump Rotor System Considering Fluid–Structure Interaction." Water 16, no. 11 (2024): 1471. http://dx.doi.org/10.3390/w16111471.

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An ultra-high-speed centrifugal pump plays a crucial role as part of an aircraft engine’s fuel supply system. This paper focuses on the coupled vibration and optimization of a parallel double-stage ultra-high-speed centrifugal pump considering fluid–structure interaction (FSI). The accuracy of the numerical calculation is verified and compared with the experimental results. The steady and transient characteristics of the rotor system are analyzed to ensure the operational reliability of the rotor system. Moreover, an orthogonal test is conducted to explore the transient structural characterist

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12

Kustosz, R., I. Altyntsev, M. Darlak, et al. "The Tin Coatings Utilisation As Blood Contact Surface Modification In Implantable Rotary Left Ventricle Assist Device Religaheart Rot." Archives of Metallurgy and Materials 60, no. 3 (2015): 2253–60. http://dx.doi.org/10.1515/amm-2015-0371.

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Abstract Constructions of the mechanical-bearingless centrifugal blood pumps utilize different types of non-contact physical bearings, which allows to balance the forces that have an impact on the pump impeller, stabilizing its position in the pump house without wall contact. The paper presents investigations of the hybrid (passive magnetic bearings and hydrodynamic bearings) suspension system for the centrifugal blood pump. Numerical simulations were used to evaluate the hydrodynamic bearing lifting force and magnetic bearing forces interaction. An important aspect of rotor suspension system

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13

Lin, Lijun, Mingge He, Wensheng Ma, Qingyuan Wang, Haiyan Zhai, and Congying Deng. "Dynamic Characteristic Analysis of the Multi-Stage Centrifugal Pump Rotor System with Uncertain Sliding Bearing Structural Parameters." Machines 10, no. 6 (2022): 473. http://dx.doi.org/10.3390/machines10060473.

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The traditional dynamic characteristic analysis of the multi-stage centrifugal pump rotor system is developed assuming the bearing structural parameters with constant values. However, the manufacturing errors will cause the structural parameters to vary around their nominal values and then affect the dynamic characteristics of the bearing-rotor system. Thus, this paper proposes a method for analyzing the dynamic characteristics of the bearing-rotor system with uncertain bearing structural parameters. First, dynamic characteristic coefficients of the sliding bearing are identified to establish

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14

Szlaga, Marek. "Balancing axial force in centrifugal pumps with pump out vanes." E3S Web of Conferences 137 (2019): 01028. http://dx.doi.org/10.1051/e3sconf/201913701028.

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Application of pump out vanes is one of the solutions to reduce hydraulic axial force generated during centrifugal pump operation. This article presents the cause of the occurrence of hydraulic axial force and method of calculating pressure distribution at the rear of the impeller used to design pump out vanes properly. It illustrates results of pump out vanes CFD calculations and its validation by measurements. The article reviews the methods of reducing pressure on the rear wall of the centrifugal pump's rotor using pump out vanes. It presents empirical formulae allowing calculation of press

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15

Isametova, Madina, Rollan Nussipali, and Aysen Isametov. "The simulation of the service life of the rotary shaft of a centrifugal pump." MATEC Web of Conferences 287 (2019): 01025. http://dx.doi.org/10.1051/matecconf/201928701025.

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The article describes an automated calculation of such an essential part of a centrifugal pumps the rotor shaft, so the highest level CAD NASTRAN system PATRAN module was used for the analysis. The computational mechanical scheme was drawn up, the axial and radial force acting on the impeller and the pump shaft were determined. The stress for the maximum feed case are determined. The results of the automated strength calculation were used for further analysis of the service life of the rotor shaft of a centrifugal pump. A computer technique for determining the service life of the shaft is give

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16

Baskharone, E. A., and S. J. Hensel. "Flow Field in the Secondary, Seal-Containing Passages of Centrifugal Pumps." Journal of Fluids Engineering 115, no. 4 (1993): 702–9. http://dx.doi.org/10.1115/1.2910202.

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This paper illustrates the impact of seal configuration on the through-flow leakage in centrifugal pumps with shrouded impellers. The flow model is based on the Petrov-Galerkin finite element method, and the computational domain permits the primary/secondary flow interaction at both ends of the clearance gap. The model is applied to a hydraulic pump with two different seal configurations for the purpose of comparison. The computed results show a strong dependency of the leakage flow percentage and swirl-velocity retention on the overall shape of the shroud-to-housing passage including, in part

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17

Pavlenko, Ivan. "Static and Dynamic Analysis of the Closing Rotor Balancing Device of the Multistage Centrifugal Pump." Applied Mechanics and Materials 630 (September 2014): 248–54. http://dx.doi.org/10.4028/www.scientific.net/amm.630.248.

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In this paper the methods of static and dynamic analysis of the closing rotor balancing device of the multistage centrifugal pump are represented. On an example of the feed pump PE 600-300 static and dynamic characteristics are determined. Defined the resonance frequencies and investigated stability of the system “pump rotor – automatic balancing device – pressure difference regulator”. The dependence for the pressure difference and conditions to ensure reliable operation of the locking rotor balancing device are determined.

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18

DIGĂ, Nicolae, Valentin NĂVRĂPESCU, Silvia-Maria DIGĂ, Adelaida-Mihaela DUINEA, and Gabriel VOCHESCU. "Modern aspects of calculation and analysis of the operating regimes of centrifugal pumps driven by induction motors, within the ancillary services of thermoelectric power plants." EMERG - Energy. Environment. Efficiency. Resources. Globalization 6, no. 3 (2020): 54–65. http://dx.doi.org/10.37410/emerg.2020.3.05.

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In this paper, the authors present a systematized methodology for modelling and analyzing the operating regimes of centrifugal pumps as working machines in electric drive systems. For solving, algorithms and calculation programs developed in the Mathcad programming environment were designed. For example, a representative case study was chosen of a condensing electric pump from the own services of a thermoelectric power plant with groups of 500 MW, driven by an induction motor with a squirrel cage rotor of 6 kV. It was thus possible to comparatively analyze two solutions for regulating the flow

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19

Zhang, Lili, Lingfeng Tang, and Qingzhao Wen. "Research on Vibration Reduction in the Transmission System of Plastic Centrifugal Pump." Applied Sciences 14, no. 5 (2024): 1681. http://dx.doi.org/10.3390/app14051681.

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The inherent weakness in the deformation resistance of plastic centrifugal pumps makes them prone to vibrations. This study explores the impact of flow components on the vibrations of such pumps. Utilizing the given parameters, the primary structural parameters of the plastic centrifugal pump were calculated. The study focused on the torsional vibrations within the pump shaft transmission system, employing a silicone oil damper for vibration mitigation. A dual-mass forced torsion vibration model was developed for the pump shaft transmission system with the added damper. The optimal damping coe

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20

Яхин, Ренат Рустемович, Сибагат Гарифович Зубаиров, and Анас Абдрахманович Багманов. "Friction bearings to improve centrifugal pump durability friction bearings to improve centrifugal pump durability." Нефтяная провинция, no. 3(11) (November 29, 2017): 75–83. http://dx.doi.org/10.25689/np.2017.3.75-83.

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В статье описан способ увеличения ресурса нефтяного центробежного многоступенчатого насоса за счет изменения его конструкции путем замены подшипника качения в полевом подшипниковом узле на подшипник скольжения. В этом случае уменьшается расстояние между опорами насоса, что увеличивает устойчивость ротора насоса, повышается герметичность и безопасность эксплуатации насоса. Приведен обзор применяемых современных материалов для изготовления вкладышей подшипников скольжения и их анализ. Особое внимание уделено подшипнику скольжения с вкладышем из резины, так как в этом случае происходит дополнител

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21

Yabin, Tian, Wang Jing, and Wang Liang. "Study on Fluid-Structure Interaction for the Multistage High Speed Centrifugal Pumps Rotors." Open Mechanical Engineering Journal 8, no. 1 (2014): 899–903. http://dx.doi.org/10.2174/1874155x01408010899.

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In the designing process of high-speed multistage centrifugal pump, in addition to the hydraulic characteristics, the calculation problem of the axis of wet critical speed is the emphasis of concern. On the base of the finite element model of the "dry" state rotor dynamics, when the flow force play a individual role in physical separate discs and cylinder, resistance formula is derived. Establish the "wet" mode of motion equation of rotor disc and shaft section, then integrate the flow force into the motion equation of the whole system unit, we can find the fluid-solid coupling finite element

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22

Ma, Xudan, Hui Sheng, Chenyang Wang, Yao Lu, and Kefeng Lyu. "Study on the Unsteady Pressure Fluctuations and Radial Forces in a Vaned-Diffuser Heavy-Liquid-Metal Centrifugal Pump." Energies 18, no. 7 (2025): 1698. https://doi.org/10.3390/en18071698.

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Lead–Bismuth Eutectic (LBE) is a very dense medium whose specific gravity is more than 10 times that of water. The unsteady hydraulic exciting force generated by the rotor–stator interaction (RSI) is significantly increased in the LBE pump, which has an important influence on the stable operation of the pump. The clearance between the vaned diffuser inlet and the impeller outlet has great influence on the rotor–stator interaction. This paper studies the unsteady flow characteristics in pumps with different rotor–stator clearance in different flow rates and transported mediums. The results show

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23

MORAVEC, PROKOP, LUKAS ZAVADIL, JAKUB STARECEK, TOMAS KRATKY, TOMAS DANEK, and PETR ABRAHAMEK. "INLET RECIRCULATION IN PARTLOAD REGIMES – RADIAL PUMP." MM Science Journal 2022, no. 2 (2022): 5629–37. http://dx.doi.org/10.17973/mmsj.2022_06_2022060.

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Partload regimes of all types of centrifugal pumps are strongly and unfavorably affected by an influence of an inlet recirculation. This negative phenomenon usually occurs at pump suctions, when a circumferential velocity component of the fluid flow (derived from a rotational speed of a rotor) is dominant over an axial velocity component. Such physical effect goes hand in hand with a creation of a pump-head instability, a decrease of an overall efficiency, an excessive noise and pressure pulsations and even a possible cavitation formation. The introduced technical problem was tested/examined f

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24

Kuleshov, A. P., G. P. Itkin, and A. S. Baybikov. "Development of the channel type centrifugal pump." Russian Journal of Transplantology and Artificial Organs 20, no. 3 (2018): 32–39. http://dx.doi.org/10.15825/1995-1191-2018-3-32-39.

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A channel centrifugal pump has been developed which have calculated parameters during the nominal operating mode based on 3-dimensional computer simulation (flow rate 5 l/min, pressure drop 100 mm). In addition, pump’s operating conditions in ECMO mode are considered at high pressure drops of 200–300 mm Hg with a speed of rotor up to 3500 rpm. Simulation result was a creation of a new channel- type centrifugal pump with shear stress that do not exceed the allowable threshold of 150 Pa, and also minimizing stagnation and flow recirculation zones. The obtained data were also the result of use de

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25

Freschi, Rosa, Agapi Bakogianni, David John Rajendran, Eduardo Anselmi Palma, Lorenzo Talluri, and Ioannis Roumeliotis. "Flow Field Explorations in a Boundary Layer Pump Rotor for Improving 1D Design Codes." Designs 7, no. 1 (2023): 29. http://dx.doi.org/10.3390/designs7010029.

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Boundary layer pumps, although attractive due to their compactness, robustness and multi-fluid and phase-handling capability, have been reported to have low experimental efficiencies despite optimistic predictions from analytical models. A lower-order flow-physics-based analytical model that can be used as a 1D design code for sizing and predicting pump performance is described. The rotor component is modelled by means of the Navier–Stokes equations as simplified using velocity profiles in the inter-disk gap, while the volute is modelled using kinetic-energy-based coefficients inspired by cent

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26

Diewald, W., and R. Nordmann. "Dynamic Analysis of Centrifugal Pump Rotors With Fluid-Mechanical Interactions." Journal of Vibration and Acoustics 111, no. 4 (1989): 370–78. http://dx.doi.org/10.1115/1.3269871.

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Calculating bending vibrations of centrifugal pump rotors, stability and unbalance response are of major interest. In order to predict the dynamic behavior accurately, one has to take into account the coupling mechanisms between the vibrating shaft and the surrounding fluid. This paper presents a finite-element procedure which includes the fluid forces arising from journal bearings, seals, balance pistons and impeller interactions to the dynamic calculations of turbopumps. The theoretical background is briefly explained and a simple Jeffcott rotor is used to show several effects of these fluid

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27

Shooshtari, Alireza, Mahdi Karimi, Mehrdad Shemshadi, and Sareh Seraj. "Effect of Impeller Diameter on Dynamic Response of a Centrifugal Pump Rotor." Vibration 4, no. 1 (2021): 117–29. http://dx.doi.org/10.3390/vibration4010010.

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This paper investigates the effect of impeller diameter on the dynamic response of a centrifugal pump using an inverse dynamic method. For this purpose, the equations of motion of the shaft and the impeller are derived based on Timoshenko beam theory considering the impeller as a concentrated mass disk. For practical modeling, the model of Jones and Harris is added to the equation to include the effect of bearings. As a case study, the model is applied to a process pump used in an oil refinery. Computing the eigenvalues of the model and comparing them with the natural frequencies of the struct

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SEMKŁO, Łukasz, and Łukasz GIERZ. "NUMERICAL AND EXPERIMENTAL ANALYSIS OF A CENTRIFUGAL PUMP WITH DIFFERENT ROTOR GEOMETRIES." Applied Computer Science 18, no. 4 (2022): 82–95. http://dx.doi.org/10.35784/acs-2022-30.

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The paper presents a comparative analysis of the operation of two variants of centrifugal pump rotors, a description of the main parameters, and the influence of the blade geometry on the performance characteristics obtained. Rotors have been designed using the arc and point method. Based on the developed 3D CAD models, the rotors were printed using the rapid prototyping method on a 3D printer in FFF (Fused Filament Fabrication) technology, in order to experimentally verify the performance, by placing them on the Armfield FM50 test stand. The analysis part of the CFD includes a fluid flow in A

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S, Harisha, and Dr Y. J. Suresh. "Rotor Dynamics Analysis of a Multistage Centrifugal Pump." International Journal of Innovative Research in Science, Engineering and Technology 03, no. 09 (2014): 16055–63. http://dx.doi.org/10.15680/ijirset.2014.0309040.

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Kuleshov, A. P., and G. P. Itkin. "Channel Rotor Calculation for a Centrifugal Blood Pump." Biomedical Engineering 52, no. 5 (2019): 311–15. http://dx.doi.org/10.1007/s10527-019-09837-9.

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Melkias, Alvera Apridalianti, Indriyani Indriyani, and Fachry Fadian. "Analisis Kerusakan pada Rotor Pompa Sentrifugal G-1-12-C di PT X." Jurnal Surya Teknika 11, no. 2 (2024): 585–92. https://doi.org/10.37859/jst.v11i2.8300.

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Damage to a tool can cause the production process to stop and cause downtime. Preventing damage to equipment is by managing the maintenance process. This process includes preventive maintenance, corrective maintenance and predictions of damage (predictive maintenance) which is carried out periodically. Centrifugal pumps have the working principle of converting kinetic energy (speed) of liquid into potential (dynamic) energy through an impeller that rotates in the casing. This pump is an impeller that is mounted on a shaft with bearings at both ends. Damage to the pump rotor has a serious impac

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32

Lee, Y., J. K. Chang, S. H. Lee, et al. "Development of Magnetically Suspended Vaneless Centrifugal Blood Pump for Cardiopulmonary Bypass." Journal of Mechanics in Medicine and Biology 03, no. 02 (2003): 187–96. http://dx.doi.org/10.1142/s0219519403000697.

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An ideal blood pump would provide sufficient flow rate against vessel pressure without hemolysis or thrombus formation. In preceding studies, it is known that non-contact operation by magnetic bearing system gives high mechanical reliability, low hemolysis and low thrombus formation. Therefore, in the present study a magnetically suspended vaneless centrifugal blood pump (MSVC-BP) has been developed for the use of cardiopulmonary bypass, in which the magnetic suspension centers the centrifugal rotor avoiding any contact. To predict the flow pattern in the pump head and to calculate shear stres

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33

Tanashu, Minyahil, Tassew Tadiwos, Amare Kassaw, et al. "Performance Evaluation of Solar Water Pumping System for Small-Scale Irrigation in Ethiopia." International Journal of Engineering Research in Africa 74 (June 2, 2025): 83–100. https://doi.org/10.4028/p-44yoax.

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Ethiopia’s agriculture, which is mainly rainfed and managed by smallholder farmers, faces significant productivity challenges due to limited rainfall during a short rainy season. Solar-powered water pumping offers a sustainable and efficient alternative for dry-season irrigation by harnessing the country's abundant solar energy potential. This study presents a novel approach to optimizing solar-assisted water pumping systems by evaluating the hydraulic and electrical performance of both centrifugal and helical rotor pumps under varying flow rates and solar irradiance levels. The findings indic

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34

Du, Leilei, Fankun Zheng, Bo Gao, Mona Gad, Delin Li, and Ning Zhang. "Numerical Investigation of Rotor and Stator Matching Mode on the Complex Flow Field and Pressure Pulsation of a Vaned Centrifugal Pump." Energies 17, no. 10 (2024): 2416. http://dx.doi.org/10.3390/en17102416.

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The match of rotor and stator blades significantly affects the flow field structure and flow-induced pressure pulsation characteristics inside the pump. In order to study the effects of the rotor and stator matching mode on the complex flow field and pressure pulsation of a centrifugal pump with a vaned diffuser, this paper designs three different vaned diffusers (DY5, DY8 and DY9) and uses the DDES (Delayed Detached Eddy Simulation) numerical method combined with structured grids to simulate the unsteady flow phenomena of the model pump under rated conditions. The results show that, under dif

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35

Baturin, Oleg, Grigorii Popov, Daria Kolmakova, Vasilii Zubanov, Julia Novikova, and Anastasia Korneeva. "Optimization of Powerful Two-stage Screw Centrifugal Pump." MATEC Web of Conferences 220 (2018): 03009. http://dx.doi.org/10.1051/matecconf/201822003009.

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The article presents a refining method for a two-stage screw centrifugal pump by the joint usage of mathematical optimization software IOSO, meshing complex NUMECA and CFD software ANSYS CFX. The pump main parameters: high-pressure stage rotor speed was 13300 rpm; low-pressure rotor speed was 3617 rpm by gearbox; inlet total pressure was 0.4 MPa; outlet mass flow was 132.6 kg/s at the nominal mode. This article describes the process of simplifying the calculation model for the optimization. The parameters of camber lines of the low-pressure impeller, transition duct, and high-pressure impeller

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Kumar, Abhishek* Naman Kumar Jain Siddharth Agnihotri. "EFFECT OF BALANCE QUALITY GRADE ON BALANCING OF A CENTRIFUGAL PUMP." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 7 (2016): 467–82. https://doi.org/10.5281/zenodo.57008.

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Vibration due to mass imbalance in rotating parts such as in pump impellers is an important engineering problem. It is a very important factor to be considered in modern machine design, especially where high speed and reliability are significant considerations. Due to mass imbalance excessive vibration  occurs and may lead to decrease in fluid velocity and pressure which may cause cavitation in the pump. Reducing rotor vibrations generally increases the service life of the rotating machinery. International Standard ISO 1940/1 is a widely accepted reference for selecting rigid rotor balanc

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Meng, Dongrong, Ting Jiang, Hongling Deng, and Gaoyang Hou. "Numerical Simulation Research on Radial Force of Centrifugal Pump with Guide Vanes." Shock and Vibration 2021 (January 28, 2021): 1–10. http://dx.doi.org/10.1155/2021/6638123.

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To reveal the internal unsteady flow state of the guide vane centrifugal pump, in this paper, the standard SST k‐ω turbulent flow model is used for unsteady numerical simulation of the centrifugal pump. The characteristics of the flow field inside the centrifugal pump are analyzed, the resultant force and vector distribution of the radial force of the guide vane and impeller of the centrifugal pump under different flow rates are obtained, which were verified by experiments. The results show that the main reason of radial force of the impeller is the pressure asymmetry in each flow passage. The

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Tarasevich, Yulia, and Anna Savchenko. "Determination of Reliability of Rotor-Annular Seals System by Theory of Runs of Random Functions." Applied Mechanics and Materials 630 (September 2014): 350–55. http://dx.doi.org/10.4028/www.scientific.net/amm.630.350.

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The paper discusses forced combined angular-radial oscillations of rotor centrifugal pump model under the influence of random forcings. System reliability is evaluated using the theory of random functions runs: the probability of finding a random vector of quality system “rotor-annular seals” in the range of admissible values of its parameters is determined. Evaluation of the influence of erosive wear of sealing surfaces in the process of pump operating on reliability system is made.

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Zhao, Yan, Shi Yu Yang, Hao Ran Liu, Bin Liu, and Jing Shao. "Clamping Accuracy Detection and Display System of Integral Turbine-rotor in Molecular Pump." Advanced Materials Research 239-242 (May 2011): 90–93. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.90.

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Molecular pump with magnetic suspension is an important vacuum extractor. The machining accuracy of turbine-rotor has crucial influence on the key parameters of molecular pump, such as pumping speed, compression ratio. A clamping accuracy detection and display system of semi-fished turbine-rotor was established. The maximum coaxiality error and its position could be detected, displayed and recorded easily. With a precision fine tuning device, coaxiality error could be reduced from 30µm to 10µm. This system effectively reduces the turbine-rotor’s centrifugal force, and increases the stability o

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Wang, Rui, Xinglin Guo, and Yuefang Wang. "Nonlinear analysis of rotor system supported by oil lubricated bearings subjected to base movements." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 4 (2015): 543–58. http://dx.doi.org/10.1177/0954406215578704.

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Response analysis of rotor system subjected to the base movements in a large rotational machinery is a complex high-dimensional nonlinear problem. In this paper, rotor system of a centrifugal pump with a pair of oil lubricated bearings is modeled as a six-degrees-of-freedom nonlinear system by the Lagrange method. The Runge–Kutta–Felburg method with variable step size is applied to solve the equations based both on nonlinear bearing model and on linearized bearing model. Poincaré maps, phase trajectories, bifurcation diagrams, and cascade diagrams are used to illustrate the dynamics of the rot

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Zhang, Yifan, Liang Hu, Rui Su, and Xiaodong Ruan. "Design Method of Bearingless Permanent Magnet Slice Motor for Maglev Centrifugal Pump Based on Performance Metric Cluster." Actuators 10, no. 7 (2021): 153. http://dx.doi.org/10.3390/act10070153.

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Different from ordinary AC machines, the design of a bearingless permanent magnet slice motor (BPMSM) considers not only the torque performance, but also the passive and active suspension properties. In addition, BPMSM for a maglev centrifugal pump has unique design characteristics due to the integration of the pump head and sensors. This paper investigates evaluation and design techniques based on a cluster of performance metrics targeting on developing BPMSM for a maglev centrifugal pump. The cluster of performance metrics for BPMSM, including passive stiffness (kz, kz/kx, kz/ky, kα, and kβ)

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Ye, Changliang, Dongsen An, Wanru Huang, Yaguang Heng, and Yuan Zheng. "Investigation on Stall Characteristics of Centrifugal Pump with Guide Vanes." Water 15, no. 1 (2022): 21. http://dx.doi.org/10.3390/w15010021.

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Stall usually occurs in the hump area of the head curve, which will block the channel and aggravate the pump vibration. For centrifugal pumps with guide vanes usually have a clocking effect, the stall characteristic at different clocking positions should be focused. In this paper, the flow field of the centrifugal pump under stall conditions is numerically simulated, and the rotor–stator interaction effects of the centrifugal pump under stall conditions are studied. The double-hump characteristic is found in the head curve by using SAS (Scale Adaptive Simulation) model. The hump area close to

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Zhang, Qihua, Weidong Shi, Yan Xu, et al. "A New Proposed Return Guide Vane for Compact Multistage Centrifugal Pumps." International Journal of Rotating Machinery 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/683713.

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For widely used multistage centrifugal pumps, their former structures are so bulky that nowadays growing interest has been shifted to the development of more compact structures. Following this trend, a compact pump structure is provided and analysed. To maintain the pump’s pressure recovery, as well as to meet the water flow from the impeller, a circumferential twisted return guide vane (RGV) is proposed. To validate this design method, the instantaneous CFD simulations are performed to investigate the rotor-stator interventions. Within the impeller, the pressure fluctuation is cyclic symmetry

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Joswig, Luca, Michael J. Vellekoop, and Frieder Lucklum. "Miniature 3D-Printed Centrifugal Pump with Non-Contact Electromagnetic Actuation." Micromachines 10, no. 10 (2019): 631. http://dx.doi.org/10.3390/mi10100631.

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We present a miniature 3D-printed dynamic pump using the centrifugal operating principle. Dynamic pumps typically yield higher flow rates than displacement pumps at reasonable output pressure. Realizing smaller devices suitable for millifluidic and microfluidic applications brings challenges in terms of design, fabrication and actuation. By using microstereolithography printing we have reduced the overall size to an effective pumping volume of 2.58 mL. The free-moving rotor consists of an impeller and permanent magnets embedded during the printing process, which allow for non-contact electroma

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Shi, Fengxia, Xuexue Zong, Guangbiao Zhao, Denghui Zhang, Pengcheng Wang, and Haonan Zhan. "Study on the Influence of Split Blades on the Force Characteristics and Fluid–Structure Coupling Characteristics of Pumps as Turbines." Energies 18, no. 7 (2025): 1642. https://doi.org/10.3390/en18071642.

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In order to study the influence of split blades on the turbine force characteristics and fluid–structure coupling characteristics of pumps, this paper selected the IS 80-50-315 centrifugal pump, used as a reverse-acting hydraulic turbine, as the research object, optimized the original pump-acting turbine impeller, and adopted different combinations of long and short blades. Based on the SIMPLE algorithm and RNG k–ε turbulence model, a complete three-dimensional unsteady numerical simulation was conducted on the internal flow field of the pump-turbine. The results show that the split blades red

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Bellary, S. A. I., Afzal Hussain, Abdus Samad, and R. A. Kanai. "Performance Optimization of Centrifugal Pump for Crude Oil Delivery." Journal of Engineering Research [TJER] 15, no. 1 (2018): 88. http://dx.doi.org/10.24200/tjer.vol15iss1pp88-101.

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Crude oil transport is an essential task in oil and gas industries, where centrifugal pumps are extensively used. The design of a centrifugal pump involves a number of independent parameters which affect the pump performance. Altering some of the parameters within a realistic range improves pump performance and saves a significant amount of energy. The present research investigated the pump characteristics by modifying the number of blades and the exit blade-angles. Reynolds-Averaged Navier-Stokes equations with standard k-ε two-equation turbulence closure were used for steady and incompressib

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Nur Rahman, Md Touhid, Md Momin Turzo, Ahammed Masum Billah, Md Masum Akanda, and Md Rahat Rahman. "Repairing and commissioning of an AC motor speed controller for a centrifugal pump." Journal of Physics and Its Applications 1, no. 2 (2019): 47. http://dx.doi.org/10.14710/jpa.v1i2.4787.

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A centrifugal pump was installed in 1984 in the Fluid Mechanics Laboratory of Mechanical Engineering Department of Rajshahi University of Engineering & Technology. The motor of the centrifugal pump was dc motor and was not working. It could not be commissioned for a long time because of the damaged speed controller. The main shaft (rotor) was also jammed. In this project work, the dc motor was tried to repair. But it could not be run because the specification of the motor and the operating manual was not available. To complete the project successfully, the dc motor was replaced by an ac in

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Zhao, Jiantao, Ji Pei, Jianping Yuan, and Wenjie Wang. "Numerical investigation of vortex structure and unsteady evolution in multi-stage double-suction centrifugal pump." Journal of Physics: Conference Series 2707, no. 1 (2024): 012017. http://dx.doi.org/10.1088/1742-6596/2707/1/012017.

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Abstract Multi-stage double-suction centrifugal pump is constructed to handle situations with large flow rates and high head. However, due to the complex internal flow structure, the pump can experience hydraulic excitation caused by the presence of numerous vortical structures. Such excitation can lead to unstable pump operation and increased energy losses. In this study, we aim to analyze the multi-stage double-suction centrifugal pump by combining numerical simulation using detached eddy simulation (DES) and experiments to accurately capture the vortical structure and elucidate the mechanis

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Zhou, Anmin, Lulu Zhai, Zuchao Zhu, Jia Guo, Xinglin Zhang, and Baoling Cui. "Effects of Transmission Ratio on the Nonlinear Vibration Characteristics of a Gear-Driven High-Speed Centrifugal Pump." Shock and Vibration 2021 (January 8, 2021): 1–15. http://dx.doi.org/10.1155/2021/6629241.

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The gear transmission system is widely used in high-speed centrifugal pump to improve the operating speed and hydraulic performances of the whole pump. Vibration characteristics and the stability of these high-speed rotor systems with gear transmission have great impacts on the stability of the whole fluid transmission system of the plant. Based on the lumped-mass method and the principle of displacement equilibrium of the rotor system, a coupled lateral-torsional dynamic model describing the gear-rotor-seal-bearing (GRSB) system of high-speed centrifugal pumps which has considered the nonline

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50

Zhou, Anmin, Lulu Zhai, Zuchao Zhu, Jia Guo, Xinglin Zhang, and Baoling Cui. "Effects of Transmission Ratio on the Nonlinear Vibration Characteristics of a Gear-Driven High-Speed Centrifugal Pump." Shock and Vibration 2021 (January 8, 2021): 1–15. http://dx.doi.org/10.1155/2021/6629241.

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The gear transmission system is widely used in high-speed centrifugal pump to improve the operating speed and hydraulic performances of the whole pump. Vibration characteristics and the stability of these high-speed rotor systems with gear transmission have great impacts on the stability of the whole fluid transmission system of the plant. Based on the lumped-mass method and the principle of displacement equilibrium of the rotor system, a coupled lateral-torsional dynamic model describing the gear-rotor-seal-bearing (GRSB) system of high-speed centrifugal pumps which has considered the nonline

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