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Numerical Prediction of the Aerodynamic Tonal Noise in a Centrifugal Fan

[+] Author Affiliations
Sandra Velarde-Suárez, Rafael Ballesteros-Tajadura, Carlos Santolaria-Morros, Joaquín Fernández-Francos

Universidad de Oviedo, Gijón, Asturias, Spain

Paper No. FEDSM2002-31210, pp. 993-1000; 8 pages
doi:10.1115/FEDSM2002-31210
From:
  • ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
  • Volume 2: Symposia and General Papers, Parts A and B
  • Montreal, Quebec, Canada, July 14–18, 2002
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3616-9 | eISBN: 0-7918-3600-2
  • Copyright © 2002 by ASME

abstract

In this work, a numerical study about the aerodynamic tonal noise generation in an industrial centrifugal fan with backward curved blades has been carried out. A three-dimensional numerical simulation of the complete unsteady flow on the whole impeller-volute configuration has been performed. Special attention has been focused on the impeller-volute interaction phenomena, analysing the influence of the distance between the impeller and the volute tongue. The numerical results have been contrasted using previous experimental investigations carried out in the same machine.

Copyright © 2002 by ASME
Topics: Noise (Sound)

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