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Flow in a Centrifugal Fan of the Squirrel Cage Type PUBLIC ACCESS

[+] Author Affiliations
R. J. Kind, M. G. Tobin

Carleton University, Ottawa, ON, Canada

Paper No. 89-GT-52, pp. V001T01A025; 9 pages
doi:10.1115/89-GT-52
From:
  • ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Toronto, Ontario, Canada, June 4–8, 1989
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7913-9
  • Copyright © 1989 by ASME

abstract

This paper presents the results of performance measurements and detailed measurements of the mean flow field at rotor inlet and rotor exit in three squirrel cage fan configurations. The flow-field measurements were taken with a five-hole probe and yield total pressure, static pressure and the three components of velocity. Measurements were taken for two casing throat areas and for two different rotors. For each configuration the flow field was measured for flow rates below, near and above the best-efficiency point. Flow patterns are complex and there is reverse flow through the rotor blading even at the best-efficiency operating condition. Although complex, the main features of flow behaviour can be understood. They were common to all three fan configurations.

Copyright © 1989 by ASME
Topics: Flow (Dynamics)
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