Advertisement

Viscous Flows in the Impeller Pump

  • Can Kang
  • Haixia Liu
  • Ning Mao
  • Yongchao Zhang
Chapter

Abstract

Flows in the impeller pump are typical among engineering fluid flows. In this chapter, we select a low-specific-speed centrifugal pump as an example to demonstrate research methods commonly used in this aspect. This pump is equipped with long and short blades. Both the pump performance and inner flow characteristics at various flow rates are studied. The design of the pump impeller is optimized, which is expected to be validated through the proof extracted from the flow field. Unsteady numerical simulation is conducted to disclose inner flow patterns associated with the modified design. Meanwhile, an assessment of the hydraulic forces exerted on the pump components is implemented based on numerical results.

References

  1. 1.
    Huang J, Geng S, Wu R, Nie C, Zhang H. Comparison of noise characteristics in centrifugal pumps with different types of impellers. Acta Acust. 2010;35(2):113–118.Google Scholar
  2. 2.
    Feng J, Benra F-K, Dohmen HJ. Application of different turbulence models in unsteady flow simulations of a radial diffuser pump. Forsch Ing. 2010;74(3):123–133.CrossRefGoogle Scholar
  3. 3.
    Cui B, Lin Y, Jin Y. Numerical simulation of flow in centrifugal pump with complex impeller. J Therm Sci. 2011;20(1):47–52.CrossRefGoogle Scholar
  4. 4.
    Yuan S, Zhang J, Yuan J, He Y, Yuedeng F. Effects of splitter blades on the law of inner flow within centrifugal pump impeller. Chin J Mech Eng. 2007;20(5):59–63.CrossRefGoogle Scholar
  5. 5.
    Yang W, Xiao R, Wang F, Wu Y. Influence of splitter blades on the cavitation performance of a double suction centrifugal pump. Adv Mech Eng. 2014;2014(1):963197.CrossRefGoogle Scholar
  6. 6.
    Thai Q, Lee C. The cavitation behavior with short length blades in centrifugal pump. J Mech Sci Technol. 2010;24(10):2007–2016.CrossRefGoogle Scholar
  7. 7.
    Petit O, Nilsson H. Numerical investigations of unsteady flow in a centrifugal pump with a vaned diffuser. Int J Rotating Mach. 2013.Google Scholar
  8. 8.
    P Dupont, G Caignaert, G Bois, T Schneider, Rotor-stator interactions in a vaned diffuser radial flow pump. In: Proceedings of ASME fluids engineering division summer meeting; 2005. p. 1087–1094.Google Scholar
  9. 9.
    Feng J, Benra F-K, Dohmen HJ. Numerical study on impeller-diffuser interactions with radial gap variation. In: Proceedings of 4th WSEAS international conference on fluid mechanics and aerodynamics, Elounda, Greece; 2006. p. 289–294.Google Scholar
  10. 10.
    Anderson HH. Prediction of head, quantity and efficiency in pumps—the area ratio principle. In: The 22nd annual fluids engineering conference, the American society of mechanical engineers, New Orleans, LA, Mar 9–13; 1980.Google Scholar
  11. 11.
    Guo X, Zhu Z, Cui B, Li Y. Effects of the short blade locations on the anti-cavitation performance of the splitter-bladed inducer and the pump. Chin J Chem Eng. 2015;23(7):1095–1101.CrossRefGoogle Scholar
  12. 12.
    Ozturk A, Aydin K, Sahin B, Pinarbasi A. Effect of impeller-diffuser radial gap ratio in a centrifugal pump. J Sci Ind Res. 2009;68:203–213.Google Scholar
  13. 13.
    Kang C, Li Y. The effect of twin volutes on the flow and radial hydraulic force production in a submersible centrifugal pump. Proc IMechE Part A. 2015;229(2):221–237.CrossRefGoogle Scholar
  14. 14.
    Petit O, Bosioc AI, Nilsson H, Muntean S, Susan-Resiga RF. Unsteady simulations of the flow in a swirl generator using OpenFOAM. Int J Fluid Mach Syst. 2008;4:199–208.CrossRefGoogle Scholar
  15. 15.
    Guo X, Zhu Z, Cui B, Shi G. Effects of the number of inducer blades on the anti-cavitation characteristics and external performance of a centrifugal pump. J Mech Sci Technol. 2016;30:3173–3181.CrossRefGoogle Scholar
  16. 16.
    Sano T, Yoshida Y, Tsujimoto Y, Nakamura Y, Matsushima T. Numerical study of rotating stall in a pump vaned diffuser. J Fluids Eng. 2002;124(2):363–370.CrossRefGoogle Scholar
  17. 17.
    Abdelmadjid A, Saad B, Gerard B, Patrick D. Numerical and experimental comparison of the vaned diffuser interaction inside the impeller velocity field of a centrifugal pump. Sci China Technol Sci. 2011;54(2):286–294.CrossRefGoogle Scholar
  18. 18.
    Hesse NH, Howard JHG. Experimental investigation of blade loading effects at design flow in rotating passages of centrifugal impellers. J Fluids Eng. 1999;121(4):813–823.CrossRefGoogle Scholar
  19. 19.
    Stel H, Amaral GDL, Negrão COR, Chiva S, Estevam V, Morales REM. Numerical analysis of the fluid flow in the first stage of a two-stage centrifugal pump with a vaned diffuser. J Fluids Eng. 2013;135(7):071104–071109.CrossRefGoogle Scholar
  20. 20.
    Barrio R, Fernández J, Blanco E, Parrondo J. Estimation of radial load in centrifugal pumps using computational fluid dynamics. Eur J Mech-B/Fluids. 2011;30:316–324.CrossRefGoogle Scholar
  21. 21.
    Gülich JF. Centrifugal pumps. Berlin: Springer; 2010.CrossRefGoogle Scholar

Copyright information

© Science Press, Beijing and Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Can Kang
    • 1
  • Haixia Liu
    • 2
  • Ning Mao
    • 3
  • Yongchao Zhang
    • 4
  1. 1.School of Energy and Power EngineeringJiangsu UniversityZhenjiangChina
  2. 2.School of Materials Science and EngineeringJiangsu UniversityZhenjiangChina
  3. 3.School of Energy and Power EngineeringJiangsu UniversityZhenjiangChina
  4. 4.School of Energy and Power EngineeringJiangsu UniversityZhenjiangChina

Personalised recommendations