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TECHNICAL PAPERS

PIV Measurements in the Impeller and the Vaneless Diffuser of a Radial Flow Pump in Design and Off-Design Operating Conditions

[+] Author and Article Information
G. Wuibaut, G. Bois

Laboratoire de Mecanique de Lille, (URA CNRS 1441), ENSAM, 8, Bd Louis IV, 59046 Lille, Cedex, France

P. Dupont, M. Stanislas

Laboratoire de Mecanique de Lille, (URA CNRS 1441), Ecole Centrale de Lille, BP 48, 59651 Villeneuve d’Ascq Cedex, France

G. Caignaert

Laboratoire de Mecanique de Lille, (URA CNRS 1441), ENSAM, 8, Bd Louis IV, 59046 Lille, Cedex, France e-mail: Guy.Caignaert@lille.ensam, fr

J. Fluids Eng 124(3), 791-797 (Aug 19, 2002) (7 pages) doi:10.1115/1.1486473 History: Received July 27, 2001; Revised April 04, 2002; Online August 19, 2002
Copyright © 2002 by ASME
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References

Barrand, J. P., Caignaert, G., Canavelis, R., and Guiton, P., 1984, “Experimental Determination of the Reverse Flow Onset in a Centrifugal Impeller,” Proceedings of the First International Pump Symposium. Texas A&M University.
Barrand, J. P., Caignaert, G., Graeser, J. E., and Rieutord, E., 1985, “Synthèse de Résultats an Air et en eau en vue de la Détection des Débits Critiques de Recirculation à l’entrée et à la Sortie de la roue d’une Pompe Centrifuge,” La Houille Blanche No. 5, pp. 405–420.
Caignaert, G., Desmet, B., Maroufi, S., and Barrand, J. P., 1985, “Velocities and Pressure Measurements and Analysis at the Outlet of a Centrifugal Pump,” ASME Paper 85-WA/FE-6.
Caignaert, G., Barrand, J. P, and Desmet, B., 1988, “Recirculation at Impeller Inlet and Outlet of a Centrifugal Pump,” Proceedings of the Institution of Mechanical Engineers, ImechE 1988-5, paper C337-88, pp. 61–68.
Caignaert, G., and Morel, P., 1995, “Mean Pressure Measurements Within a Centrifugal Pump Impeller at Partial Flow Rates,” VDI Berichte, 1186, pp. 405–419.
Caignaert, G., and Patricio, O., 1998, “Pressure Fluctuations Within the Impeller and the Inlet Duct of a Centrifugal Pump,” Hydraulic Machinery and Cavitation, World Scientific, ed, pp. 703–710.
Combes, J. F., and Rieutord, E., 1992, “Numerical and Experimental Analysis of the Flow in a Centrifugal Pump at Nominal and Partial Flow Rate,” ASME paper 92 GT 248, 12 pages.
El Hajem, M., Morel, M., Spettel, F., and Bois, G., 1998, “Etude de l’Ecoulement Moyen en Sortie de roue d’une Pompe Centrifuge (roue SHF),” La Houille Blanche, No. 7, pp. 24–31.
Stanislas, M., Kompenhans, J., and Westerweel, J., 2000, Particle image velocimetry: towards industrial applications, Kluwer Academic Press, Amsterdam.
Sinha,  M., and Katz,  J., 2000, “Quantitative Visualization of the Flow in a Centrifugal Pump With Diffuser Vanes. I: on Flow Structures and Turbulence,” ASME J. Fluids Eng., 122, pp. 97–107.
Sinha,  M., Katz,  J., and Meneveau,  Ch., 2000, “Quantitative Visualization of the Flow in a Centrifugal Pump With Diffuser Vanes. II: Addressing Passage-Averaged and Large-Eddy Simulation Modeling Issues in Turbomachinery Flows,” ASME J. Fluids Eng., 122, pp. 108–116.
Myers,  K. J., Ward,  R. W., and Bakker,  A., 1997, “A Digital Particle Image Velocimetry Investigation of Flow Field Instabilities of Axial-Flow Impellers,” ASME J. Fluids Eng., 119, pp. 623–632.
Wuibaut, G., Dupont, P., Caignaert, G., and Stanislas, M., 2000, “Experimental Analysis of Velocities in the Outlet Part of a Radial Flow Pump Impeller and the Vaneless Diffuser Using Particle Image Velocimetry,” XX IAHR Symposium, Charlotte, 6–9 Aug. 2000, paper GU03.
Wuibaut, G., Dupont, P., Bois, G., Caignaert, G., and Stanislas, M., 2001, “Analysis of Flow Velocities Within the Impeller and the Vaneless Diffuser of a Radial Flow Pump,” 4th European Conference on Turbomachinery, Fluid Dynamics and Thermodynamics, 20–23 March, 2001, Firenze, Italy, paper ATI-CST-047/01.
Raffel M., Willert C., and Kompenhans, J., 1998, Particle Image Velocimetry, Springer-Verlag, Berlin Heidelberg, p. 127.
Johnston,  J. P., and Eide,  S. A., 1976, “Turbulent Boundary Layers on Centrifugal Compressors Blades: Prediction of the Effects of Surface Curvature and Rotation,” ASME J. Fluids Eng., 98, pp. 374–381.
El Hajem, M., Akhras, A., Morel, R., and Champagne, J. Y., 2001, “Rotor Stator Interactions in a Centrifugal Pump Equipped with a Vaned Diffuser,” 4th European Conference on Turbomachinery, Fluid Dynamics and Thermodynamics, 20–23 Mar. Firenze, Italy.
Ubaldi,  M., Zunino,  P., and Cattanei,  A., 1993, “A. Relative Flow and Turbulence Measurements Downstream of a Backward Centrifugal Impeller,” ASME J. Turbomach., 115, pp. 543–551.

Figures

Grahic Jump Location
Definition of a measurement plane
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Definition of the two views
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Evolutions of Cu/U2 in the blade to blade direction for various axial positions and a fixed radius
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Overall mean values of the peripheral component of flow velocities at impeller outlet
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Isovalues of non-dimensional mean relative velocities
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Rates of velocity fluctuations B/B3=0.5Q/Qn=1.61 view 2
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Rates of velocity fluctuations B/B3=0.5Q/Qn=1.02 view 2
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Rates of velocity fluctuations B/B3=0.5Q/Qn=0.91 view 2
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Rates of velocity fluctuations B/B3=0.5Q/Qn=0.63 view 2
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Rates of fluctuations B/B3=0.5Q/Qn=0.45 view 2
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(a) rates of fluctuations B/B3=0.5Q/Qn=1.02 view 1; (b) rates of fluctuations B/B3=0.256Q/Qn=1.02 view 1
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Rates of fluctuations B/B3=0.5Q/Qn=0.63 view 1
Grahic Jump Location
Rates of fluctuations B/B3=0.5Q/Qn=0.26 view 1

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