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Aeroacoustic Study of Tonal Noise Generated by Axial Flow Fans

[+] Author Affiliations
T. Belamri

Ansys Canada, Ltd., Waterloo, ON, Canada

G. Wang

The Trane Company, La Crosse, WI

Paper No. HT-FED2004-56908, pp. 833-837; 5 pages
doi:10.1115/HT-FED2004-56908
From:
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 1
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4690-3 | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME

abstract

SPLNoise is an aeroacoustic program developed to predict tonal noise generated by low speed axial fans. It is based on a generalization of the acoustic analogy of Lowson. The main input to the program are the radial thrust and torque distribution along the blade. This radial distribution is obtained from a CFD calculation. An automatic link to CFX commercial CFD code was made. Noise testing was performed in the anechoic and reverberant room at the Trane Company. Comparison between predicted noise levels and experimental data is very satisfactory.

Copyright © 2004 by ASME

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