Research Papers: Fundamental Issues and Canonical Flows

Numerical Flow Prediction in Inlet Pipe of Vertical Inline Pump

[+] Author and Article Information
Christopher Stephen

National Research Center of Pumps,
Jiangsu University,
Zhenjiang 212 013, Jiangsu Province, China
e-mail: christo_spc@yahoo.com

Shouqi Yuan

National Research Center of Pumps,
Jiangsu University,
Zhenjiang 212 013, Jiangsu Province, China
e-mail: shouqiy@ujs.edu.cn

Ji Pei

National Research Center of Pumps,
Jiangsu University,
Zhenjiang 212 013, Jiangsu Province, China
e-mail: jpei@ujs.edu.cn

Xing Cheng G

National Research Center of Pumps,
Jiangsu University,
Zhenjiang 212 013, Jiangsu Province, China
e-mail: ganxingcheng@vip.qq.com

1Corresponding author.

Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received July 7, 2017; final manuscript received November 16, 2017; published online December 26, 2017. Assoc. Editor: Daniel Livescu.

J. Fluids Eng 140(5), 051201 (Dec 26, 2017) (10 pages) Paper No: FE-17-1414; doi: 10.1115/1.4038533 History: Received July 07, 2017; Revised November 16, 2017

For a pump, the inlet condition of flow determines the outlet conditions of fluid (i.e., energy). As a rule to minimize the losses at the entry of pump, the bends should be avoided as one of the methods. But for the case of vertical inline pump, it is unavoidable in order to save the space for installation. For the purpose of investigation in inlet pipe of vertical inline pump, the unsteady Reynolds-averaged Navier–Stokes equations are solved using the computational fluid dynamics (CFD) code. The results have been shown that there is a good agreement between the performance characteristics obtained from the simulation and experiments. The velocity coefficient from the simulation along the inlet pipe sections is well matched with the theoretical values and found to have variation near the exit of inlet pipe. The pressure and velocity coefficients studies depict the flow physics at each section along with the study of helicity at the exit of inlet pipe to determine the recirculation effects. It is observed that the vortices associated with the motion of the particles are moved toward the surfaces and are more intense than the mean flow. The trends of pressure coefficient at the exit of inlet pipe were addressed with reference to the various flow rates for eight set of radial lines. Hence, this work concludes that for inlet pipe, the generation of circulation was due to the stream path and the reverse flow from the impeller and was reconfirmed with the literature.

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Lazarkiewicz, S. , and Troskolanski, A. , 1965, Impeller Pumps, Pergamon, Oxford, UK.
Crane, 1982, “Flow of Fluids through Valves, Fittings and Pipe,” Crane Co., New York, Technical Paper No. 410 M. https://engkarrar.files.wordpress.com/2013/01/flow-of-fluids-through-valve-fittings-and-pipes.pdf
Stepanoff, A. J. , 1957, Centrifugal and Axial Flow Pumps, 2nd ed., Wiley, New York.
Acosta, A. J. , 1958, “An Experimental Study of Cavitating Inducers,” Second Symposium on Naval Hydrodynamics: Hydrodynamic Noise Cavity Flow, Washington, DC, Aug. 25–29, pp. 533–557. https://authors.library.caltech.edu/47405/
Toyokura, T. , 1961, “Studies on the Characteristics of Axial Flow Pumps—Part 1: General Tendencies of the Characteristics of Pumps,” Bull. JSME, 4(14), pp. 287–340. [CrossRef]
Grennan, C. W. , 1978, “Polyphase Flow in Gas Turbine Fuel Pumps,” Polyphase Flow in Turbomachinery, C. Brennen , P. Cooper , and P. W. Runstadler , eds., ASME, New York.
Gontsov, N. G. , Marinova, O. A. , and Tananaev, A. V. , 1984, “Turbulent Flow around a Bend in a Circular Pipe,” Hydrotech. Constr., 18(12), pp. 596–602. [CrossRef]
Mikhailov, I. E. , and Kuzmenko, A. I. , 1985, “Effect of the Shape of the Transition Section on Head Losses in Intakes of a Pumped-Storage Station,” Hydrotech. Constr., 19(12), pp. 652–660. [CrossRef]
Alpan, K. , and Peng, W. W. , 1991, “Suction Reverse Flow in an Axial-Flow Pump,” ASME J. Fluids Eng., 113(1), pp. 90–97. [CrossRef]
Badowski, H. R. , 1970, “Inducers for Centrifugal Pumps,” Worthington Canada, Ltd., Internal Report.
Valle, J. D. , Braisted, D. M. , and Brennen, C. E. , 1992, “The Effects of Inlet Flow Modification on Cavitating Inducer Performance,” ASME J. Turbomach., 114(2), pp. 360–365. [CrossRef]
Van Esch, B. P. M. , 2009, “Performance and Radial Loading of a Mixed-Flow Pump Under Non-Uniform Suction Flow,” ASME J. Fluids Eng., 131(5), p. 051101. [CrossRef]
Torii, D. , Nagahara, T. , and Okihara, T. , 2013, “Suppression of the Secondary Flow in a Suction Channel of a Large Centrifugal Pump,” IOP Conf. Ser.: Mater. Sci. Eng., 52, p. 032005. [CrossRef]
Gao, Z. , Zhu, W. , Lu, L. , Deng, J. , Zhang, J. , and Wuang, F. , 2014, “Numerical and Experimental Study of Unsteady Flow in a Large Centrifugal Pump With Stay Vanes,” ASME J. Fluids Eng., 136(7), p. 071101. [CrossRef]
Liu, J. , Li, Z. , Wang, L. , and Jiao, L. , 2011, “Numerical Simulation of the Transient Flow in a Radial Flow Pump During Stopping Period,” ASME J. Fluids Eng., 133(11), p. 111101. [CrossRef]
Pei, J. , Yuan, S. , Li, X. , and Yuan, J. , 2014, “Numerical Prediction of 3-D Periodic Flow Unsteadiness in a Centrifugal Pump Under Part-Load Condition,” J. Hydrodyn., 26(2), pp. 257–263. [CrossRef]
Celik, I. B. , Ghia, U. , Roache, P. J. , Freitas, C. J. , Coleman, H. , and Raad, P. E. , 2008, “Procedure for Estimation and Reporting of Uncertainty Due to Discretization in CFD Applications,” ASME J. Fluids Eng., 130(7), p. 078001. [CrossRef]
Gülich, J. F. , 2014, Centrifugal Pumps, 3rd ed., Springer Verlag, New York.
ANSYS, 2012, “ANSYS CFX User's Guide, Release 14.5,” ANSYS, Canonsburg, PA.
Asuaje, M. , Bakir, F. , Kouidri, S. , Kenyery, F. , and Rey, R. , 2005, “Numerical Modelization of the Flow in Centrifugal Pump: Volute Influence in Velocity and Pressure Fields,” Int. J. Rotating Mach., 2005(3), pp. 244–255. [CrossRef]
Zhou, L. , Shi, W. , Lu, W. , Hu, B. , and Wu, S. , 2012, “Numerical Investigations and Performance Experiments of a Deep-Well Centrifugal Pump With Different Diffusers,” ASME J. Fluids Eng., 134(7), p. 071102. [CrossRef]
Feng, J. , Benra, F. K. , and Dohmen , 2011, “Investigation of Periodically Unsteady Flow in a Radial Pump by CFD Simulations and LDV Measurements,” ASME J. Turbomach., 133(1), p. 011004. [CrossRef]
Murakami, M. , and Heya, N. , 1966, “Swirling Flow in Suction Pipe of Centrifugal Pumps: 1st Report: Distribution of Velocity and Energy,” Bull. JSME, 9(34), pp. 328–337. [CrossRef]
Breugelmans, F. A. E. , and Sen, M. , 1982, “Prerotation and Fluid Recirculation in the Suction Pipe of Centrifugal Pumps,” 11th Turbomachinery Symposium, College Station, TX, pp. 165–180. http://oaktrust.library.tamu.edu/handle/1969.1/163693
Brun, K. , and Kurz, R. , 2005, “Analysis of Secondary Flows in Centrifugal Impellers,” Int. J. Rotating Mach., 2005(1), pp. 45–52.
Horlock, J. H. , and Lakshminarayana, B. , 1973, “Secondary Flow: Theory, Experiment and Application in Turbomachinery Aerodynamics,” Annu. Rev. Fluid Mech., 5, pp. 247–280. [CrossRef]
Noorani, A. , Sardina, G. , Brandt, L. , and Schlatter, P. , 2015, “Particle Velocity and Acceleration in Turbulent Bent Pipe Flows,” Flow Turbul. Combust., 95(2–3), pp. 539–559. [CrossRef]
Hambric, S. A. , Boger, D. A. , Fahnline, J. B. , and Campbell, R. L. , 2010, “Structure- and Fluid- Borne Acoustic Power Sources Induced by Turbulent Flow in 90° Piping Elbows,” J. Fluids Struct., 26(1), pp. 121–147. [CrossRef]
Zaikin, I. I. , 1967, “Rational Shapes of Pressure Conduits at Bends,” Hydrotech. Constr., 1(10), pp. 912–913.
Gonzalez, J. , and Santolaria, C. , 2006, “Unsteady Flow Structure and Global Variables in a Centrifugal Pump,” ASME J. Fluids Eng., 128(5), pp. 937–946. [CrossRef]
Posa, A. , Lippolis, A. , and Balaras, E. , 2016, “Investigation of Separation Phenomena in a Radial Pump at Reduced Flow Rate by Large-Eddy Simulation,” ASME J. Fluids Eng., 138(12), p. 121101. [CrossRef]
Gonzalez, J. , Fernandez Oro, J. M. , Arguelles Diaz, K. M. , and Blanco, E. , 2009, “Unsteady Flow Patterns for a Double Suction Centrifugal Pump,” ASME J. Fluids Eng., 131(7), p. 071102. [CrossRef]


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Fig. 1

3D flow domain of vertical inline pump

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Fig. 3

Computational grid: (a) isometric view of pump and (b) impeller

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Fig. 4

Monitoring locations in vertical inline pump

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Fig. 5

Performance characteristics

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Fig. 6

Velocity coefficients and area ratio along the inlet pipe at Qn

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Fig. 7

Energy gradient along inlet pipe

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Fig. 8

Contours of velocity coefficient along the inlet pipe

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Fig. 9

Contours of pressure coefficient across the various section at Qn

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Fig. 10

Circumferential distribution of wall pressure coefficient around various sections

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Fig. 11

Contours of helicity at section 7

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Fig. 12

Velocity vector at section 7

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Fig. 13

Contours of pressure coefficient at section 7

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Fig. 14

Pressure coefficient along the radial lines of section 7




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