Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers

Tarek A. Meakhail; Mohamed Salem; Ibrahim Shafie

doi:doi:10.11648/j.ijepe.20140302.15

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Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers

Tarek A. Meakhail, Mohamed Salem, Ibrahim Shafie

Published in International Journal of Energy and Power Engineering (Volume 3, Issue 2)

Received: 21 February 2014 Published: 30 March 2014

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Abstract

Various parameters affect the pump performance. The impeller outlet diameter, the blade angle, the blade number and casing are the most critical. In this study, experimental and numerical investigations are carried out for two impellers different in diameter with the same casing. Numerical simulation of the whole machine (impeller, vaneless diffuser and volute) is performed using CFX-Tascflow commercial code. A frozen rotor simulation model is used for the steady state calculations and the rotor/stator model is used for the unsteady one. The model pump has a design rotation speed 2800 rpm and two impellers with 7 blades (70 mm and 105 mm outer diameters). For each pump, the performance measurements are measured and CFD analyses are carried out for different flow rates for steady and unsteady calculations. Finally, a comparison between the CFD and performance measurement is fairly good.

Published in	International Journal of Energy and Power Engineering (Volume 3, Issue 2)
DOI	10.11648/j.ijepe.20140302.15
Page(s)	65-76
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Centrifugal Pump, Unsteady, Steady, CFD

References

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[2]	Acosta, A. J., and Bo-werman, R. D., 1957, ‘‘An Experimental Study of Centrifugal Pump Impellers,’’ Trans. ASME, 79, pp. 1821–1831.
[3]	Stepanoff, A. J., 1957, Centrifugal and Axial Flow Pumps, Wiley, NY.
[4]	Agostinelli, A., Nobles, D., and Mockridge, C. R., 1960, ‘‘An Experimental Investigation of Radial Thrust in Centrifugal Pumps,’’ ASME J. Eng. Power, 80, pp. 120–126.
[5]	Biheller, H. J., 1965, ‘‘Radial Forces on the Impeller of Centrifugal Pumps with Volute, Semivolute, and Fully Concentric Casings,’’ ASME J. Eng. Power, 85, pp. 319–323.
[6]	Hergt, P., and Krieger, P. 1972, ‘‘Radial Forces and Moments Acting on the Impeller of Volute Casing Pumps,’’ Proceedings of the Fourth Conference of Fluid Machinery, Budapest, pp. 599–619.
[7]	Kanki, H., Kawata, Y., and Kawatani, T., 1981, ‘‘Experimental Research on the Hydraulic Excitation Force on the Pump Shaft,’’ Proceedings, ASME Design Engineering Technical Conf., 81-DET-71, Sept., Hartford, CT.
[8]	Chamieh, D. S., Acosta, A. J., Brennen, C. E., Caughey, T. K., and Franz, R., 1985, ‘‘Experimental Measurements of Hydrodynamic Radial Forces and Stiffness Matrices for a Centrifugal Pump Impeller,’’ ASME J. Fluids Eng., 107, pp. 307–315.
[9]	De Ojeda, W., Flack, R. D., and Miner, S. M., 1995, ‘‘Laser Velocimetry Measurements in a Double Volute Centrifugal Pump,’’ Int. J. Rotat. Mach., 1, Nos. 3–4, pp. 199–214.
[10]	Inoue, M., and Cumpsty, N. A., 1984, ‘‘Experimental Study of Centrifugal Impeller Discharge Flow in Vaneless and Vaned Diffusers,’’ASME J. Eng. Gas Turbines Power, 106, pp. 455–467.
[11]	Sideris, M. T., and Van den Braembussche, R. A., 1987, ‘‘Influence of a Circumferential Exit Pressure Distortion on the Flow in an Impeller and Diffuser,’’ ASME J. Turbomach., 109, pp. 48–54.
[12]	Arndt, N., Acosta, A. J., Brennen, C. E., and Caughey, T. K., 1989, ‘‘Rotor- Stator Interaction in a Diffuser Pump,’’ ASME J. Turbomach., 111, pp. 213–221.
[13]	Arndt, N., Acosta, A. J., Brennen, C. E., and Caughey, T. K., 1990, ‘‘Experimental Investigation of Rotor-Stator Interaction in a Centrifugal Pump With Several Vaned Diffusers,’’ ASME J. Turbomach., 112, pp. 98–108.
[14]	Meakhail T., Seung O Park, “ A Study of Impeller-Diffuser-Volute Interaction in a Centrifugal Fan“ ASME Journal of Turbomachinery, vol.127, no. 1, 2005, pp 84-90.
[15]	Kaupert, K. A., and Staubli, T., 1999, ‘‘The Unsteady Pressure Field in a High Specific Speed Centrifugal Pump Impeller. Part I: Influence of the Volute,’’ ASME J. Fluids Eng., 121, pp. 621–626.
[16]	Ramesha., Prema K., Sharma, Raghuprasad, Madhusudan M. ” Simulation Of Three Dimensional Flows In Hydraulic Pumps” International journal of Advanced Scientific and Technical Research Issue 1 vol. 1 October, 2011, pp. 62-68.
[17]	Bao-ling C., Yong-gang L. and Ying-zi J. “Numerical Simulation of Flow in Centrifugal Pump with Complex Impeller” Journal of Thermal Science, vol. 20, No. 1, 2011, pp 47-52.
[18]	Raúl B. , Jorge P. and Eduardo B. “Numerical Analysis of the Unsteady Flow in the Near-Tongue Region in a Volute-Type Centrifugal Pump for Different Operating Points” Computers & Fluids Journal vol. 39,2010, pp. 859-870.
[19]	ASC, 1999, ‘‘CFX-TASCflow Documentation Version 2.9.0,’’ Advanced Scientific Computing, Ltd., Waterloo, Ontario, Canada
[20]	ASC, 1999, ‘‘CFX-Turbogrid Documentation Version 1.4,’’ Advanced Scientific Computing, Ltd., Waterloo, Ontario, Canada.

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APA Style

Tarek A. Meakhail, Mohamed Salem, Ibrahim Shafie. (2014). Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers. International Journal of Energy and Power Engineering, 3(2), 65-76. https://doi.org/10.11648/j.ijepe.20140302.15

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ACS Style

Tarek A. Meakhail; Mohamed Salem; Ibrahim Shafie. Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers. Int. J. Energy Power Eng. 2014, 3(2), 65-76. doi: 10.11648/j.ijepe.20140302.15

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AMA Style

Tarek A. Meakhail, Mohamed Salem, Ibrahim Shafie. Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers. Int J Energy Power Eng. 2014;3(2):65-76. doi: 10.11648/j.ijepe.20140302.15

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@article{10.11648/j.ijepe.20140302.15,
  author = {Tarek A. Meakhail and Mohamed Salem and Ibrahim Shafie},
  title = {Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers},
  journal = {International Journal of Energy and Power Engineering},
  volume = {3},
  number = {2},
  pages = {65-76},
  doi = {10.11648/j.ijepe.20140302.15},
  url = {https://doi.org/10.11648/j.ijepe.20140302.15},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.20140302.15},
  abstract = {Various parameters affect the pump performance. The impeller outlet diameter, the blade angle, the blade number and casing are the most critical. In this study, experimental and numerical investigations are carried out for two impellers different in diameter with the same casing. Numerical simulation of the whole machine (impeller, vaneless diffuser and volute) is performed using CFX-Tascflow commercial code. A frozen rotor simulation model is used for the steady state calculations and the rotor/stator model is used for the unsteady one. The model pump has a design rotation speed 2800 rpm and two impellers with 7 blades (70 mm and 105 mm outer diameters). For each pump, the performance measurements are measured and CFD analyses are carried out for different flow rates for steady and unsteady calculations.  Finally, a comparison between the CFD and performance measurement is fairly good.},
 year = {2014}
}

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TY  - JOUR
T1  - Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers
AU  - Tarek A. Meakhail
AU  - Mohamed Salem
AU  - Ibrahim Shafie
Y1  - 2014/03/30
PY  - 2014
N1  - https://doi.org/10.11648/j.ijepe.20140302.15
DO  - 10.11648/j.ijepe.20140302.15
T2  - International Journal of Energy and Power Engineering
JF  - International Journal of Energy and Power Engineering
JO  - International Journal of Energy and Power Engineering
SP  - 65
EP  - 76
PB  - Science Publishing Group
SN  - 2326-960X
UR  - https://doi.org/10.11648/j.ijepe.20140302.15
AB  - Various parameters affect the pump performance. The impeller outlet diameter, the blade angle, the blade number and casing are the most critical. In this study, experimental and numerical investigations are carried out for two impellers different in diameter with the same casing. Numerical simulation of the whole machine (impeller, vaneless diffuser and volute) is performed using CFX-Tascflow commercial code. A frozen rotor simulation model is used for the steady state calculations and the rotor/stator model is used for the unsteady one. The model pump has a design rotation speed 2800 rpm and two impellers with 7 blades (70 mm and 105 mm outer diameters). For each pump, the performance measurements are measured and CFD analyses are carried out for different flow rates for steady and unsteady calculations.  Finally, a comparison between the CFD and performance measurement is fairly good.
VL  - 3
IS  - 2
ER  -

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Author Information

Tarek A. Meakhail

Mechanical Power Engineering Department, Faculty of Energy Engineering, Aswan University, Aswan, Egypt
Mohamed Salem

Mechanical Power Engineering Department, Faculty of Energy Engineering, Aswan University, Aswan, Egypt
Ibrahim Shafie

Faculty of Engineering, Assiut University, Assiut, Egypt

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Plain Text BibTeX RIS

APA Style

Tarek A. Meakhail, Mohamed Salem, Ibrahim Shafie. (2014). Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers. International Journal of Energy and Power Engineering, 3(2), 65-76. https://doi.org/10.11648/j.ijepe.20140302.15

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ACS Style

Tarek A. Meakhail; Mohamed Salem; Ibrahim Shafie. Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers. Int. J. Energy Power Eng. 2014, 3(2), 65-76. doi: 10.11648/j.ijepe.20140302.15

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AMA Style

Tarek A. Meakhail, Mohamed Salem, Ibrahim Shafie. Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers. Int J Energy Power Eng. 2014;3(2):65-76. doi: 10.11648/j.ijepe.20140302.15

Copy | Download

@article{10.11648/j.ijepe.20140302.15,
  author = {Tarek A. Meakhail and Mohamed Salem and Ibrahim Shafie},
  title = {Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers},
  journal = {International Journal of Energy and Power Engineering},
  volume = {3},
  number = {2},
  pages = {65-76},
  doi = {10.11648/j.ijepe.20140302.15},
  url = {https://doi.org/10.11648/j.ijepe.20140302.15},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.20140302.15},
  abstract = {Various parameters affect the pump performance. The impeller outlet diameter, the blade angle, the blade number and casing are the most critical. In this study, experimental and numerical investigations are carried out for two impellers different in diameter with the same casing. Numerical simulation of the whole machine (impeller, vaneless diffuser and volute) is performed using CFX-Tascflow commercial code. A frozen rotor simulation model is used for the steady state calculations and the rotor/stator model is used for the unsteady one. The model pump has a design rotation speed 2800 rpm and two impellers with 7 blades (70 mm and 105 mm outer diameters). For each pump, the performance measurements are measured and CFD analyses are carried out for different flow rates for steady and unsteady calculations.  Finally, a comparison between the CFD and performance measurement is fairly good.},
 year = {2014}
}

Copy | Download

TY  - JOUR
T1  - Steady and Unsteady Flow inside a Centrifugal Pump for Two Different Impellers
AU  - Tarek A. Meakhail
AU  - Mohamed Salem
AU  - Ibrahim Shafie
Y1  - 2014/03/30
PY  - 2014
N1  - https://doi.org/10.11648/j.ijepe.20140302.15
DO  - 10.11648/j.ijepe.20140302.15
T2  - International Journal of Energy and Power Engineering
JF  - International Journal of Energy and Power Engineering
JO  - International Journal of Energy and Power Engineering
SP  - 65
EP  - 76
PB  - Science Publishing Group
SN  - 2326-960X
UR  - https://doi.org/10.11648/j.ijepe.20140302.15
AB  - Various parameters affect the pump performance. The impeller outlet diameter, the blade angle, the blade number and casing are the most critical. In this study, experimental and numerical investigations are carried out for two impellers different in diameter with the same casing. Numerical simulation of the whole machine (impeller, vaneless diffuser and volute) is performed using CFX-Tascflow commercial code. A frozen rotor simulation model is used for the steady state calculations and the rotor/stator model is used for the unsteady one. The model pump has a design rotation speed 2800 rpm and two impellers with 7 blades (70 mm and 105 mm outer diameters). For each pump, the performance measurements are measured and CFD analyses are carried out for different flow rates for steady and unsteady calculations.  Finally, a comparison between the CFD and performance measurement is fairly good.
VL  - 3
IS  - 2
ER  -

Copy | Download