Experimental Determination of Centrifugal Impeller Discharge Flow and Slip Factor PUBLIC ACCESS

[+] Author Affiliations
J. T. McGuire

KL Worthington Pumps, Penrith, NSW, Australia

J. P. Gostelow

The New South Wales Institute of Technology, Broadway, NSW, Australia

Paper No. 85-GT-77, pp. V001T03A025; 8 pages
  • ASME 1985 International Gas Turbine Conference and Exhibit
  • Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery
  • Houston, Texas, USA, March 18–21, 1985
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7938-2
  • Copyright © 1985 by ASME


The use of a miniature pressure transducer to measure the flow field at the discharge of an industrial centrifugal pump impeller is described. Periodic signals were elucidated using a phase lock averaging program. A new technique was used in which, with one easily calibrated transducer, total and static pressures and flow angle were measured. Axial traversing enabled the discharge flow to be surveyed and the slip factor to be deduced directly. The measured slip factor was in good agreement with design correlations.

Copyright © 1985 by ASME
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