Experimental and Numerical Studies in a Centrifugal Pump With Two-Dimensional Curved Blades in Cavitating Condition

[+] Author and Article Information
O. Coutier-Delgosha, R. Fortes-Patella, J. L. Reboud

Laboratoire des Ecoulements, Géophysiques et Industriels, B. P. 53, Grenoble, 38041, France

M. Hofmann, B. Stoffel

Laboratory for Turbomachinery and Fluid Power, Darmstadt University of Technology, Darmstadt D-64289, Germany

J. Fluids Eng 125(6), 970-978 (Jan 12, 2004) (9 pages) doi:10.1115/1.1596238 History: Received June 26, 2002; Revised October 24, 2002; Online January 12, 2004
Copyright © 2003 by ASME
Your Session has timed out. Please sign back in to continue.


Lohrberg, H., Hofmann, M., Ludwig, G., and Stoffel, B., 1999, “Analysis of Damaged Surfaces. Part II: Pit Counting by 2D Optical Techniques,” Proc. of the 3rd ASME/JSME Joints Fluids Engineering Conference, July, San Francisco, CA, ASME, New York.
Patella,  R. Fortes, Reboud,  J. L., and Archer,  A., 2000, “Cavitation Mark Measurements by 3D Laser Profilometry,” Wear, 246, pp. 59–67.
Hofmann, M., Lohrberg, H., Ludwig, G., Stoffel, B., Reboud, JL., and Fortes-Patella, R., 1999, “Numerical and Experimental Investigations on the Self-Oscillating Behavior of Cloud Cavitation: Part 1 Visualisation/Part 2 Dynamic Pressures,” 3rd ASME/JSME Joint Fluids Engineering Conference, San Francisco, CA, July, ASME, New York.
Lohrberg, H., Stoffel, B., Fortes-Patella, R., Coutier-Delgosha, O., and Reboud, J. L., 2002, “Numerical and Experimental Investigations on the Cavitating Flow in a Cascade of Hydrofoils,” Exp. Fluids, accepted for publication.
Takasugi, N., Kato, H., and Yamagushi, H., 1993, “Study on Cavitating Flow Around a Finite Span Hydrofoil,” Cavitation and Multiphase Flow Forum, ASME, New York, ASME-FED-vol. 153, pp. 177–182.
Alajbevoic, A., Grogger, H., and Philipp, H. 1999, “Calculation of Transient Cavitation in Nozzle Using the Two-Fluid Model,” 12th Annual Conf. on Liquid Atomization and Spray Systems, May 16–19, Indianapolis.
Kunz, R., Boger, D., Chyczewski, T., Stinebring, D., and Gibeling, H., 1999, “Multi-Phase CFD Analysis of Natural and Ventilated Cavitation About Submerged Bodies,” 3rd ASME/JSME Joint Fluids Engineering Conference, San Francisco, CA, ASME, New York.
Bunnell,  R. A., and Heister,  S. D., 2000, “Three-Dimensional Unsteady Simulation of Cavitating Flows in Injector Passages,” ASME J. Fluids Eng., 122, pp. 791–797.
Delannoy, Y., and Kueny, J. L. 1990, “Two Phase Flow Approach in Unsteady Cavitation Modelling,” Cavitation and Multiphase Flow Forum, ASME, New York, ASME-FED-Vol. 98, pp. 153–158.
Kubota,  A., Kato,  H., and Yamaguchi,  H., 1992, “A New Modelling of Cavitating Flows: A Numerical Study of Unsteady Cavitation on a Hydrofoil Section,” J. Fluid Mech., 240, pp. 59–96.
Combes, J.-F., and Archer, A., 2000, “Etude de la cavitation dans la pompe SHF,” Coll. Machines Hydrauliques: Instationnarités et effets associés, Société Hydrotechnique de France, Chatou, France.
Medvitz, R. B., Kunz, R. F., Boger, D. A., Lindau, J. W., Yocum, A. M., and Pauley, L. L. 2001, “Performance Analysis of Cavitating Flow in Centrifugal Pumps Using Multiphase CFD,” ASME Fluids Engineering Division Summer Meeting, June, New Orleans, LA.
Coutier-Delgosha, O., Fortes-Patella, R., Reboud, J. L., and Hakimi, N., 2001, “Numerical Simulation of Cavitating Flow in an Inducer Geometry,” 4th European Conference on Turbomachinery, Mar. 20–23, Firenze, Italy.
Coutier-Delgosha, O., Reboud, J.L., and Fortes-Patella, R., 2001, “Numerical Study of the Effect of the Leading Edge Shape on Cavitation Around Inducer Blade Sections,” Proceedings of the 4th Int. Symp. on Cavitation, Pasadena, CA, June.
Hofmann, M., 2001, “Ein Beitrag zur Verminderung des erosiven Potentials kavitierender Strömungen,” PhD thesis, TU Darmstadt, June.
Hofmann, M., Stoffel, B., Friedrichs, J., and Kosyna, G. 2001, “Similarities and Geometrical Effects on Rotating Cavitation in 2 Scaled Centrifugal Pumps,” Proceedings of the 4th Int. Symp. on Cavitation, Pasadena, CA, June.
Coutier-Delgosha, O., 2001, “Modélisation des Ecoulements Cavitants: Etude des comportements instationnaires et application tridimensionnelle aux Turbomachines,” Ph.D. thesis, INPG, Grenoble, France, Nov.
Reboud, J. L., Stutz, B., and Coutier, O., 1998: “Two-Phase Flow Structure of Cavitation: Experiment and Modelling of Unsteady Effects,” Proceedings of the 3rd Int. Symp. on Cavitation, Grenoble, France, Apr.
Hakimi, N., 1997: “Preconditioning Methods for Time Dependent Navier-Stokes Equations,” Ph.D. thesis, Vrije Univ., Brussels.
Hirsch, C., 1990, Numerical Computation of Internal and External Flows, John Wiley and Sons, New York.
Coutier-Delgosha, O., Fortes-Patella, R., and Reboud, J.-L., 2002, “Evaluation of the Turbulence Model Influence on the Numerical Simulations of Unsteady Cavitation,” ASME J. Fluids Eng., accepted for publication.
Coutier-Delgosha, O., Fortes-Patella, R., and Reboud, J.-L., 2002, “Simulation of Unsteady Cavitation With a 2-Equations Turbulence Model Including Compressibility Effects,” J. of Turbulence, accepted for publication.
Courtot, Y., Coutier-Delgosha, O., and Reboud, J.-L., 2002, “Numerical Simulation of the Unsteady Cavitation Behavior of an Inducer Blade Cascade,” AIAA J., proposed for publication.


Grahic Jump Location
NPSH values for 3 percent and 10 percent head drop
Grahic Jump Location
(a) Impeller geometry, (b) housing
Grahic Jump Location
Unsteady-state of blade cavitation on suction side, NPSH=8 m, stroboscopic light illumination (a scaling bar is added to each image, representing a length of 10 mm)
Grahic Jump Location
Unsteady-state of blade cavitation on pressure side at two different time and NPSH=7 m (laser light sheet)
Grahic Jump Location
Mean vapor distribution and standard deviation on pressure side, Qn, NPSH=7 m
Grahic Jump Location
Mean vapor distribution and standard deviation on pressure side, Qn, NPSH=6 m
Grahic Jump Location
The barotropic state law ρ(P) for water
Grahic Jump Location
Mesh of the leading edge with (a) a H-I type mesh, (b) a H-O type mesh
Grahic Jump Location
Mesh applied for the calculations (300,000 cells). (a) Meridional view, (b) three-dimensional view of a blade-to-blade channel, (c) view of the mesh on hub side of the pump. (The entire pump geometry is reconstructed by rotation of the single blade-to-blade channel.)
Grahic Jump Location
(a) Total pressure elevation in the pump (nominal flow rate), (b) characteristics H(Q) of the pump in noncavitating conditions
Grahic Jump Location
Head drop chart at nominal flow rate. The points indicate the cavitating conditions visualized on Figs. 13 and 14. The line corresponds to the apparition of vapor.
Grahic Jump Location
Development of the two-phase areas as NPSH decreases (corresponding to points on Fig. 12)
Grahic Jump Location
Void ratio evolution on a blade-to-blade surface close to the shroud, and velocity fields (corresponding to the NPSH decrease represented on Fig. 12)
Grahic Jump Location
Vapor structures on suction side (experiment NPSH=8 m, computation NPSH=7 m). Calculation: iso-density contour (ρ≈0.95ρ1: void ratio >5 percent) drawn in yellow, shroud in blue, blade in gray.
Grahic Jump Location
(a) Numerical void ratio distribution, (b) pressure side cavity, comparison with experiment (NPSH=7 m)
Grahic Jump Location
Head-drop curves in cavitating conditions: comparison at 0.8 Qn, Qn, and 1.08 Qn.




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In