0
RESEARCH PAPERS

Radial Forces in a Pump Impeller Caused by a Volute Casing

[+] Author and Article Information
G. T. Csanady

The University of New South Wales, Sydney, Australia

J. Eng. Power 84(4), 337-340 (Oct 01, 1962) (4 pages) doi:10.1115/1.3675045 History: Received July 17, 1961; Online January 10, 2012

Abstract

The volute casing of a radial flow impeller is replaced by an “equivalent” logarithmic spiral which, at the design flow rate of the pump, does not exert a force on the fluid discharged by the impeller. At other flow rates there is a nonzero angle of incidence and the spiral, which may be regarded as the single blade of a radial flow cascade, exerts a “lift” force. This force is calculated by the methods of perfect fluid theory, first mapping the spiral onto a flat-plate cascade, then establishing the pressure distribution. Incidence angle and the magnitude of the absolute exit velocity from the impeller govern the lift forces and by a consideration of the velocity triangles at impeller exit some qualitative features of the behavior of radial forces on the impeller are deduced. Quantitative comparison with the experimental results of Iversen, et al., [4 ] also shows good agreement.

Copyright © 1962 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

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