International Journal of Fluid Machinery and Systems

Korean Society for Fluid machinery (한국유체기계학회)
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Correction and Experimental Verification of Velocity Circulation in a Double-blade Pump Impeller Outlet

  • Kai, Wang (Research Center of Fluid Machinery Engineering and Technology, Jiangsu University) ;
  • Qiong, Liu (Institute of Scientific and Technical Information, Jiangsu University)
  • Received : 2015.03.01
  • Accepted : 2015.11.30
  • Published : 2015.12.31
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Abstract

It is difficulty to calculate velocity circulation in centrifugal pump impeller outlet accurately. Velocity circulations of a double-blade pump impeller outlet were calculated with Stodola formula, Weisner formula and Stechkin formula. Simultaneously, the internal flow of impeller for the double-blade pump were measured with PIV technology and average velocity circulations at the 0.8, 1.0 and 1.2 times of design flow were obtained. All the experimental values were compared with the above calculation values at the three conditions. The results show that calculation values of velocity circulations with Weisner formula is close to the experimental values. On the basis of the above, velocity circulations of impeller outlet were corrected. The results of experimental verification show that the corrected calculation errors, whose maximum error is 3.65%, are greatly reduced than the uncorrected calculation errors. The research results could provide good references for establishment of theoretical head and multi-condition hydraulic optimization of double-blade pumps.

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References

  1. Gülich J.F., 2008, Centrifugal Pumps, Springer-Verlag Berlin Heidelberg.
  2. Igor J. Karassik, Joseph P. Messina, Paul Cooper, and Charles C. Heald, 2008, Pump Handbook, McGraw-Hill Professional, New York.
  3. Guan Xingfan, 2011, Modern Pumps Theory and Design, China Astronautic Publishing House, Beijing.
  4. Keller Jens, Blanco Eduardo, Barrio Raul, and Parrondo Jorge, 2014, "PIV Measurements of the Unsteady Flow Structures in a Volute Centrifugal Pump at a High Flow Rate," Experiments in Fluids, Vol. 55, No. 10, pp. 1820.1-1820.14.
  5. Westra R.W., Broersma L., Van Andel K., and Kruyt N.P.,2010, "PIV Measurements and CFD Computations of Secondary Flow in a Centrifugal Pump Impeller," Journal of Fluids Engineering - Transactions of the ASME, Vol. 132, No. 6, pp. 061104.1-061104.8.
  6. Nishi Yasuyuki, Inagaki Terumi, Li Yanrong, Omiya Ryota, and Hatano Kentaro, 2014, "The flow field of undershot cross-flow water turbines based on PIV measurements and numerical analysis," International Journal of Fluid Machinery and Systems, Vol. 7, No. 4, pp. 174-182. https://doi.org/10.5293/IJFMS.2014.7.4.174
  7. Feng J., Benra F., and Dohmen H.J., 2009, "Time-resolved Particle Image Velocity(PIV) Measurements in a Radial Diffuser Pump," ASME Fluids Engineering Division Summer Meeting, Colorado, USA, FEDSM2009-78297.
  8. Pedersen N., Larsen P.S., and Jacobsen C.B., 2003, "Flow in a Centrifugal Pump Impeller at Design and Off-design Conditions - Part I : Particle Image Velocimetry (PIV) and Laser Doppler Velocimetry (LDV) Measurements," Journal of Fluids Engineering, Vol. 125, No. 1, pp. 61-72. https://doi.org/10.1115/1.1524585
  9. Wu Yulin, Liu Shuhong, Yuan Huijing, and Shao Jie, 2011, "PIV Measurement in Internal Instantaneous Flows of a Centrifugal Pump," Science China - Technological Science, Vol. 54, No. 2, pp. 270-276. https://doi.org/10.1007/s11431-010-4262-3
  10. Liu Houlin, Wang Kai, Yuan Shouqi, Tan Minggao, Wang Yong, and Ru Weimin, 2012, "3D PIV Test of Inner Flow in a Double Blade Pump Impeller," Chinese Journal of Mechanical Engineering, Vol. 25, No. 3, pp. 491-497. https://doi.org/10.3901/CJME.2012.03.491
  11. Yang Hua, Tang Fangping, Liu Chao, Zhou Jiren, and Xu Haoran, 2011, "2-D PIV Measurements of Unsteady Flow Field inside the Rotating Impeller of Centrifugal Pump," Transactions of the Chinese Society of Agricultural Machinery, Vol. 42, No. 7, pp. 56-60.
  12. Wu Xianfang, Liu Houlin, Wang Kai, Tan Minggao, and Yang Dongsheng, 2012, "3D PIV measurement of flow in double-channel pump under overall operating conditions", Journal of Drainage and Irrigation Machinery Engineering, Vol. 30, No. 6, pp. 665-669.