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Journal articles on the topic 'Centrifugal vertical pumps'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Thiruchelvam, Vinesh, and Lim Min Hong. "Fluids vertical transfer utilizing VFD based centrifugal pumps." Journal of Physics: Conference Series 822 (April 11, 2017): 012062. http://dx.doi.org/10.1088/1742-6596/822/1/012062.

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2

Birajdar, Ravindra, and Appasaheb Keste. "Prediction of flow induced vibrations in vertical turbine pumps using one-way fluid-structure interaction." MATEC Web of Conferences 211 (2018): 16002. http://dx.doi.org/10.1051/matecconf/201821116002.

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Centrifugal pumps/vertical turbine pumps are important and critical equipment for operation in the power generation, water supply, process industries and petrochemical industries. All centrifugal and vertical turbine pumps have rotors and structures that can vibrate in response to excitation forces. Mechanical and hydraulic unbalance are the two major factors which can create dynamic effects in terms of pump vibrations. In many cases the resulting hydraulic forces due to hydraulic unbalance has much the same effect as the mechanical unbalance. The vibrations in the pumps must be within accepta

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3

Avers, Fredric H. "Minimizing Vibration in Vertical Non-Clog Wastewater Centrifugal Pumps." Proceedings of the Water Environment Federation 2009, no. 16 (2009): 1440–59. http://dx.doi.org/10.2175/193864709793956185.

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4

Gao, Bo, Min Guan Yang, Xin Kai Sun, and Ning Zhang. "Structural and Hydraulic Design of Mechanical Pump Using in LBE Test Loop." Advanced Materials Research 588-589 (November 2012): 190–93. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.190.

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In order to design a mechanical pump that can satisfy the special requirements of the LBE test loop, structural and hydraulic design ideas were discussed in this paper. A new vertical centrifugal submerged pump was proposed, including installation and hydraulic model. Based on the provided parameter, hydraulic design of the pump has been done by CFD method. Velocity caused erosion problem was considered primarily in the design process. It is helpful for the future design of pumps in various loops and ADS.

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5

Hajar, Ibnu. "Pengaruh tipe bantalan bola pada poros pompa sentrifugal terhadap sinyal getaran." Jurnal POLIMESIN 16, no. 1 (2018): 25. http://dx.doi.org/10.30811/jpl.v16i1.552.

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Pompa sentrifugal merupakan salah satu pompa yang sangat banyak digunakan pada industri pengolahan, seperti industri pengolahan air minum, industri pengolahan minyak, dan pabrik kelapa sawit. Bentuknya sederhana dan biaya perawatan lebih murah. Permasalahan yang sering terjadi pada pompa sentrifugal adalah kerusakan pada bantalan poros yang diakibatkan oleh getaran, keausan, dan misalignment. Pada makalah ini membahas pengaruh tipe bantalan bola terhadap sinyal getaran poros pompa sentrifugal satu tingkat. Tujuan penelitian ini adalah mengetahui dan mendapatkan pengaruh tipe bantalan bola pada

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6

V. S., Shagapov, Borodin S. L., Gubaidullin A. A., Duong Ngoc Hai, and Musakaev N. G. "The theoretical research of an upward two-phase flow with phase's changes in a vertical well." Vietnam Journal of Mechanics 32, no. 4 (2010): 211–21. http://dx.doi.org/10.15625/0866-7136/32/4/290.

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By methods of mechanics of multiphase systems the mathematical model describing an upward gas-and-oil flow in a vertical well is constructed. The model considers phase's changes, deposition of oil paraffin on the elevating column's walls of the well, influence of an installation of electrical centrifugal pumps on parameters of the gas-and-oil flow, and also heat exchange of the well with surrounding rock. It is shown, that at the using of an installation of electrical centrifugal pumps and variation of its metering characteristic, depth of its setting, it is possible to achieve the optimum tem

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7

Luo, Yin, Wenqi Zhang, Yakun Fan, Yuejiang Han, Weimin Li, and Emmanuel Acheaw. "Analysis of Vibration Characteristics of Centrifugal Pump Mechanical Seal under Wear and Damage Degree." Shock and Vibration 2021 (April 8, 2021): 1–9. http://dx.doi.org/10.1155/2021/6670741.

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Mechanical seal is a kind of shaft sealing equipment. Face wear is one of the main causes of mechanical seal failure. Mechanical seal condition is also related to the reduction of energy consumption and carbon emission. Therefore, we need to detect the centrifugal pump seal condition. At present, vibration signal is a common method for fault monitoring and diagnosis of centrifugal pump. In this paper, the vibration signal under the condition of damaged centrifugal pump seal is measured by studying the characteristics of vibration signal after the end face damage of centrifugal pump. Statistica

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8

Qiu, Guangqi, Si Huang, and Yingkui Gu. "Experimental investigation and multi-conditions identification method of centrifugal pump using Fisher discriminant ratio and support vector machine." Advances in Mechanical Engineering 11, no. 9 (2019): 168781401987804. http://dx.doi.org/10.1177/1687814019878041.

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For identifying the operation situations of centrifugal pumps by artificial intelligence, we performed an experiment on multi-flow conditions. The multi-flow conditions were simulated by adjusting an automatic flow-regulating valve installed on outlet pipe, and the vertical vibration signals of 20 flow points at the bearing house were collected by the test system. By time-domain analysis, frequency-domain analysis, information entropy, empirical modal decomposition, and wavelet packet decomposition methods, a comprehensive feature space was constructed. In addition, the optimal features were s

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9

Chervov, Vladimir. "APPLICATION FIELD EXTENSION OF PNEUMATIC HUMMERS WITH VARIABLE STRUCTURE OF PERCUSSION POWE." Interexpo GEO-Siberia 2, no. 5 (2019): 103–11. http://dx.doi.org/10.33764/2618-981x-2019-2-5-103-111.

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In the work short review of equipment applied for driving of underground utility lines and for hammering of vertical steel elements into soil is carried out. Construction and operating principle of pneumatic hammer with elastic circle and inertial valves for hammering of pipes with various diameter are described. Huge longitudinal forces generated during percussion provide rock destruction or soil compaction in the area of hole boring. The forces can be used for realization of other technological processes, for example, for repairing of oil hole electric-centrifugal pumps which require full di

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10

Li, He, Shi Bo Fu, Qing Rong Zhao, and Bang Chun Wen. "Seismic Response Spectrum Analysis of the Single Vertical Centrifugal Pump." Applied Mechanics and Materials 121-126 (October 2011): 1450–54. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.1450.

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A dynamic model of the single vertical centrifugal pump was established to avoid seismic disadvantageous direction towards the direction of continually occurring earthquake during the designing and the installing. Finite element method was used to analyse the single vertical centrifugal pump and educe the first 20 natural frequencies and vibration shapes. Response spectrum method was adopted to do earthquake analysis. Response spectrum was inputted from different directions for getting different displacements and loads. According to the results, model’s direction of 45°~75° should be located a

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11

Zadanovskii, L. G., R. V. Gordeeva, and R. I. Zhukovskii. "Centrifugal vertical electric pump set-type 2400V-25/100." Chemical and Petroleum Engineering 22, no. 6 (1986): 249–50. http://dx.doi.org/10.1007/bf01282430.

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12

Achouri, Ryma, Omeima Nouicer, Hatem Mhiri, and Philippe Bournot. "Probable cause analysis of cracks observed on vertical centrifugal pump." Engineering Failure Analysis 29 (April 2013): 1–11. http://dx.doi.org/10.1016/j.engfailanal.2012.11.003.

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13

Ganesh, Potnuru, and S. Rama Krishna. "Diagnosis and Resolution of Vibration Issues in Vertical Centrifugal Pump." Journal of Failure Analysis and Prevention 20, no. 3 (2020): 1019–28. http://dx.doi.org/10.1007/s11668-020-00910-0.

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14

Deng, Qifan, Ji Pei, Wenjie Wang, Bin Lin, Chenying Zhang, and Jiantao Zhao. "Energy Loss and Radial Force Variation Caused by Impeller Trimming in a Double-Suction Centrifugal Pump." Entropy 23, no. 9 (2021): 1228. http://dx.doi.org/10.3390/e23091228.

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Impeller trimming is an economical method for broadening the range of application of a given pump, but it can destroy operational stability and efficiency. In this study, entropy production theory was utilized to analyze the variation of energy loss caused by impeller trimming based on computational fluid dynamics. Experiments and numerical simulations were conducted to investigate the energy loss and fluid-induced radial forces. The pump’s performance seriously deteriorated after impeller trimming, especially under overload conditions. Energy loss in the volute decreased after trimming under

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15

Khoeini, D., and E. Shirani. "Influences of Diffuser Vanes Parameters and Impeller Micro Grooves Depth on the Vertically Suspended Centrifugal Pump Performance." Journal of Mechanics 35, no. 5 (2019): 735–46. http://dx.doi.org/10.1017/jmech.2019.13.

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ABSTRACTEffects of geometric parameters of diffuser vanes as well as impeller micro grooves depth on the performance of a vertically suspended centrifugal pump have been studied. Different diffuser vanes height,leading angles, trailing angles, wrapping angles and furthermore, impeller micro grooves depths have been analyzed thoroughly. Numerical results have been verified by comparing experimental data. Results, without considering cavitation, reveal that diffuser vanes height has the profound impact on the vertically suspended centrifugal pump performance followed by vanes wrapping angle. Add

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16

Kaipale, Bahubali A., V. R. Naik, and Santosh S. Patil. "Development of Inbuilt Self-Priming System for Vertical Inline Centrifugal Pump." Journal of Fluid Mechanics and Mechanical Design 02, no. 02 (2020): 1–6. http://dx.doi.org/10.46610/jfmmd.2020.v02i02.001.

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17

Zheng, Huifan, Yuanqing Ma, Yongchang Wang, et al. "Influence of impeller’s geometric parameters on refrigerant flow and thermal performance of a working fluid pump." Thermal Science 24, no. 4 (2020): 2393–99. http://dx.doi.org/10.2298/tsci2004393z.

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In this paper, the refrigerant flow and the thermal performance of a working fluid pump are performed in the perspective of an ejector refrigeration system. The influence of impeller?s geometric parameters on the internal pressure, flow rate and cavitation of the pump is studied experimentally and numerically. A vertical multi-stage centrifugal pump is selected as an experimental prototype for numerical verification, and a working fluid pump, which is optimized by the orthogonal analysis, is numerically studied, the results show that the optimized one has better thermal performance than the pr

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18

Matsumiya, Goro, Shigeaki Ohtake, Koji Kagisaki, Toshiki Takahashi, Yoshiki Sawa, and Hikaru Matsuda. "Right Heart Assist during Beating Bypass for Severe Left Ventricular Dysfunction." Asian Cardiovascular and Thoracic Annals 10, no. 2 (2002): 155–58. http://dx.doi.org/10.1177/021849230201000214.

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Three patients with triple-vessel disease and severe left ventricular dysfunction underwent successful revascularization on a beating heart, using a right ventricular assist system. Heparin-coated circuits with a centrifugal pump provided 2.5 to 3.5 L·min−1 of flow to maintain good hemodynamics and enable easy access to the posterior vessels during vertical displacement of the heart.

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19

Vyavahare, Pranav, Lokavarapu Bhaskara Rao, and Nilesh Patil. "CFD Analysis of Double Suction Centrifugal Pump with Double Volute." Periodica Polytechnica Mechanical Engineering 62, no. 1 (2017): 74. http://dx.doi.org/10.3311/ppme.11425.

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In this study, Computational Fluid Dynamics (CFD) Analysis is used to investigate the flow in the centrifugal pump impeller using the ANSYS-CFX. Impeller is designed for head of 22 m, discharge of 52.239 m3/hr and for the operating speed of 2970 RPM. Impeller vane profile is generated by tangent arc method and CFD analysis is performed for 1st stage of vertical pump out of 15 stages. Velocity and pressure distribution are analysed for casing and impeller. Using ANSYS-CFX head developed by this impeller is calculated and compared with the required value. From results of CFD analysis, performanc

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20

Gan, Xingcheng, Wenjie Wang, Ji Pei, Shouqi Yuan, Yajing Tang, and Majeed Koranteng Osman. "Direct Shape Optimization and Parametric Analysis of a Vertical Inline Pump via Multi-Objective Particle Swarm Optimization." Energies 13, no. 2 (2020): 425. http://dx.doi.org/10.3390/en13020425.

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The vertical inline pump is a single-suction single-stage centrifugal pump with a curved inlet pipe before the impeller, which usually causes a significant increase of hydraulic losses in the inline pump. Considering the matching relationship between the inlet pipe and impeller, a multi-objective direct optimization based on the MOPSO of the inlet pipe and impeller was carried out to broaden the efficient operating area of the vertical inline pump. Bezier curves were adopted to control the profiles of the inlet pipe and impeller and 39 coordinates of the control points and the blade number wer

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21

Hvidbak, Flemming, and P. Masciangioli. "THE DEVELOPMENT AND TEST OF EQUIPMENT FOR RAPID REFLOTATION OF SPILLED ORIMULSION®." International Oil Spill Conference Proceedings 2001, no. 2 (2001): 1317–22. http://dx.doi.org/10.7901/2169-3358-2001-2-1317.

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ABSTRACT An Orimulsion® spill will behave differently to an oil spill by initially going into suspension as microscopic surfactant coated bitumen particles in the upper 2–3 meters below the sea surface. In case of spills at Orimulsion® marine terminals or nearshore, it is important to be able to rapidly refloat the bitumen. In this way, the spill could be converted to and treated as a conventional heavy oil spill, using booms and heavy oil skimmers. Previous tests by INTEVEP and BITOR indicated that agitation, air injection, and splashing are important for a rapid formation and reflotation of

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22

Awari, G. K., P. M. Ardhapurkar, D. G. Wakde, and L. B. Bhuyar. "Performance analysis of air-lift pump design." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 218, no. 10 (2004): 1155–61. http://dx.doi.org/10.1243/0954406042369099.

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The air-lift pump is a well-established method for vertical transport of liquids and solid-liquid mixtures. The objectives of the present study are to evaluate the performance of a pump under predetermined operating conditions and to optimize the related parameters for the use of the pump for two-phase mixtures of air and water when a compressor is readily available. This paper is focused on the general mathematical functions applicable to air-lift pump installations. The effect of various design parameters on the performance of air-lift pump is presented. A user-friendly computer program is d

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23

Lukiyanto, Y. B. "A Couple of Savonius Wind Mill and Centrifugal Reaction Pump as a Wind Energy Water Pump System." Applied Mechanics and Materials 836 (June 2016): 299–303. http://dx.doi.org/10.4028/www.scientific.net/amm.836.299.

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Wind energy is one of renewable energy which became the center of attention and grew rapidly. Especially for remote area, wind energy is one of alternative dependable energy sources which can be used for water lifting. Savonius wind mill can be a solution for decentralized power generation, with low cost and reduced environmental impacts. This study observed a couple of Savonius wind mill and a centrifugal reaction pump which used as a wind energy water pump system (WEWPS). The Savonius wind mill has 0.8 m diameter, 1.0 m height, 2 stages, 2 buckets in every stage and 0.1 m width of the bucket

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24

Ramasamy, K. K., and P. S. S. Srinivasan. "Experimental investigation of forced and wind assisted domestic solar hot water systems." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 226, no. 1 (2011): 154–60. http://dx.doi.org/10.1177/0954406211413962.

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This paper investigates a proposal to replace the electrically operated pump of a forced circulation solar hot water system with a windmill-driven pump. A two-stage centrifugal pump driven by a vertical axis windmill with a Savonius type rotor is added to the fluid loop. Tests on the forced circulation system (FCS) mode, with two different pump speeds, driven by an electrically operated pump or in wind-assisted system (WAS) mode were carried out during January, April, July, and October 2009. Test results obtained on clear days are reported. A daily average thermal efficiency level of between 3

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25

Mohammadzadeh, Maziar, Mohammadreza Arbabtafti, and Majid Shahgholi. "Dynamic analysis of slender rotor of vertically suspended centrifugal pumps due to various hydraulic design factors." Archive of Applied Mechanics 89, no. 2 (2018): 245–76. http://dx.doi.org/10.1007/s00419-018-1463-x.

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26

Anishev, E. Yu. "Vertical shafting torsion fluctuations in powerful electric drives with controllable rotation frequencies: Centrifugal circulation pump systems." Russian Electrical Engineering 80, no. 6 (2009): 327–30. http://dx.doi.org/10.3103/s1068371209060078.

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27

Mohammadzadeh, Maziar, Majid Shahgholi, and Mohammadreza Arbabtafti. "Chaotic vibration reduction of vertically suspended centrifugal pumps by the effect of the mechanical design parameter on hydraulic forces." International Journal on Interactive Design and Manufacturing (IJIDeM) 14, no. 2 (2019): 367–79. http://dx.doi.org/10.1007/s12008-019-00626-y.

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28

Takwim, R. N. Akhsanu, and Kris Witono. "PENGARUH VARIASI POSISI PEMASANGAN DAN ARAH ALIRAN FLUIDA TERHADAP KINERJA VENTURI VAKUM." INFO-TEKNIK 20, no. 1 (2020): 31. http://dx.doi.org/10.20527/infotek.v20i1.6956.

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A liquid fluid flow that is driven by a centrifugal pump past the ventury channel needed to produce the vacuum conditions at the ventury vacuum pump. The amount of vacuum pressure produced by ventury is influenced by the increase of flow rate due to the channel cross section that follows the Bernoulli principle. The flow rate on the channel is affected by the discharge generated by the pump that follows the law of continuity. In addition to speed, the pressure of channel input is also a variable that affects ventury vacuum pressure. Pressure losses and flow discharge caused by the connection o

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29

Musakaev, N. G., and S. L. Borodin. "Mathematical model of the two-phase flow in a vertical well with an electric centrifugal pump located in the permafrost region." Heat and Mass Transfer 52, no. 5 (2015): 981–91. http://dx.doi.org/10.1007/s00231-015-1614-3.

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30

Parde de, Marincan, Riyanto Simangunsong, and Rinda Hedwig. "Implementation of vertical multistage centrifugal pump system for villages at an altitude of ± 1200m above sea level in Sipahutar – North Sumatera area." IOP Conference Series: Earth and Environmental Science 109 (December 2017): 012013. http://dx.doi.org/10.1088/1755-1315/109/1/012013.

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31

Uruma, Mitsuru, Yoshiaki Tanzawa, and Takumi Hashizume. "153 Development of the Aeration System Driven by a Vertical Axis Wind Turbine : Part 2 Performance Examination of the Simplified Centrifugal Pump." Proceedings of Conference of Tohoku Branch 2008.43 (2008): 107–8. http://dx.doi.org/10.1299/jsmeth.2008.43.107.

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32

Emery, Robert W., Goya V. Raikar, Barbara Murphy, Anton Rohan, and Kris Nielsen. "The Use of the Mini-Cardiopulmonary Bypass Circuit in Robotic Mitral Valve Surgery." Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery 3, no. 1 (2008): 16–18. http://dx.doi.org/10.1097/01.imi.0000312975.89468.8f.

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Background Computer enabled robotic mitral valve repair cases have longer cross-clamp and perfusion times because of the more technically difficult procedure. To modify some of the well-documented side effects of standard cardiopulmonary bypass (CPB), we used a new mini-circuit on three robotic mitral cases. Methods Three patients having mitral valve repair (triangular resection of P2 and annuloplasty ring) using the daVinci Robot (Intuitive Surgical, Sunnyvale, CA) had circulatory support using a modified Resting Heart System (Medtronic, Inc., Fridley, MN), a vertically oriented space saving

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33

Protopopov, A., N. Zhestkiy, S. Godorozha, M. Kalugina, A. Mukhlaeva, and A. Zaitseva. "Investigation of the dependence of the axial force acting on the rotor of a vertical centrifugal pump on the area of the discharge holes of the impeller." IOP Conference Series: Materials Science and Engineering 963 (November 13, 2020): 012029. http://dx.doi.org/10.1088/1757-899x/963/1/012029.

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34

"Vertical centrifugal pumps." Metal Finishing 97, no. 8 (1999): 35. http://dx.doi.org/10.1016/s0026-0576(01)80136-7.

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35

"Multi-stage, vertical, seal-less, non-metallic magnetic drive, centrifugal pumps." World Pumps 1998, no. 383 (1998): 10. http://dx.doi.org/10.1016/s0262-1762(99)80404-0.

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36

Neumann, Martin, Thomas Schäfer, André Bieberle, and Uwe Hampel. "An Experimental Study on the Gas Entrainment in Horizontally and Vertically Installed Centrifugal Pumps." Journal of Fluids Engineering 138, no. 9 (2016). http://dx.doi.org/10.1115/1.4033029.

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In this work, we have studied how gas accumulates in an industrial centrifugal pump under various steady-state two-phase flow conditions. Thereby, we considered both horizontal and vertical pump installation positions. Phase fractions within the impeller region of the pump have been quantitatively disclosed using high-resolution gamma-ray computed tomography (HireCT) and applying time-averaged rotation-synchronized CT scanning technique. The study was made for inlet volumetric gas flow rates between 0% and 5%. To account for different inlet flow conditions, which are assumed to occur during un

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37

Childs, Dara W., and Ameen Muhammed. "Comments on a Newly-Identified Destabilizing Rotordynamic Mechanism Arising in Vertical Hydraulic Turbines and the Back Shrouds of Centrifugal Impellers." Journal of Engineering for Gas Turbines and Power 136, no. 4 (2013). http://dx.doi.org/10.1115/1.4025889.

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In three 2010 papers, Tsujimoto et al. (2010, “Moment Whirl Due to Leakage Flow in the Back Shroud Clearance of a Rotor,” Int. J. Fluid Mach. Syst., 3(3), pp. 235–244), Song et al. (2010, “Rotordynamic Instability Caused by the Fluid Force Moments on the Backshroud of a Francis Turbine Runner,” Int. J. Fluid Mach. Syst., 3(1), pp. 76–79), and Song et al. (2010, “Rotordynamic Moment on the Backshroud of a Francis Turbine Runner Under Whirling Motion,” ASME J. Fluids Eng., 132, p. 071102) discussed and explained a novel destabilizing mechanism arising in both hydraulic turbines and the back surf

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38

"Centrifugal lube oil pump intended for vertical installation in tanks." World Pumps 2004, no. 454 (2004): 8. http://dx.doi.org/10.1016/s0262-1762(04)00242-1.

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39

"Centrifugal lube oil pump intended for vertical installation in tanks." World Pumps 2004, no. 459 (2004): 10. http://dx.doi.org/10.1016/s0262-1762(04)00409-2.

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40

Isametova, Madina, Bakhyt Absadykov, Marat Batyrgaliyev, and Ivan Borovik. "CENTRIFUGAL PUMP ROTOR DYNAMICS STUDY." NEWS of National Academy of Sciences of the Republic of Kazakhstan, October 11, 2018, 226–33. http://dx.doi.org/10.32014/2018.2518-170x.29.

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Rotary machines just like other complex technical devices, are the subject to vibrations that can lead to harmful effects during operation, and sometimes to destruction of individual elements, for example, reference nodes . The main source of vibration in such machines is a rotating element - the rotor, to which the centrifugal forces act in presence of shell elements or their residual imbalance. This is the main and inevitable type of vibration of any rotary machine. The unbalanced rotor always oscillates with the reference frequency, that is, the rotation velocity. In this case, the resultin

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41

Tobins, FH, and AIN Onuoha. "The Vibration Effect Of Unbalance Mass On Vertical Centrifugal Pump Rotor." Journal of Modeling, Design and Management of Engineering Systems 1, no. 1 (2002). http://dx.doi.org/10.4314/jmdmes.v1i1.19016.

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42

Zeng, Yongshun, Zhifeng Yao, Ran Tao, Weichao Liu, and Ruofu Xiao. "Effects of Lean Mode of Blade Trailing Edge on Pressure Fluctuation Characteristics of a Vertical Centrifugal Pump With Vaned Diffuser." Journal of Fluids Engineering 143, no. 11 (2021). http://dx.doi.org/10.1115/1.4051386.

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Abstract A vertical centrifugal pump with a vaned diffuser is very attractive in the field of long-distance water supply. Excessive pressure fluctuations in the vaneless region due to rotor–stator interaction (RSI) need careful evaluation. In the present investigation, the hydraulic performance and pressure fluctuation characteristics of a vertical centrifugal pump with three different lean modes of the blade trailing edge were quantitatively analyzed by comparison experiments, using the same test rig. Results showed that the pressure fluctuation level was the highest in the vaneless region, c

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43

Pei, Ji, Xingcheng Gan, Wenjie Wang, Shouqi Yuan, and Yajing Tang. "Multi-Objective Shape Optimization on the Inlet Pipe of a Vertical Inline Pump." Journal of Fluids Engineering 141, no. 6 (2019). http://dx.doi.org/10.1115/1.4043056.

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Vertical inline pump is a single-stage single-suction centrifugal pump with a bent pipe before the impeller, which is usually used where installation space is a constraint. In this paper, with three objective functions of efficiencies at 0.5 Qd, 1.0 Qd, and 1.5 Qd, a multi-objective optimization on the inlet pipe of a vertical inline pump was proposed based on genetic algorithm with artificial neural network (ANN). In order to describe the shape of inlet pipe, the fifth-order and third-order Bezier curves were adopted to fit the mid curve and the trend of parameters of cross sections, respecti

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