Centrifugal fans are widely used in several applications and, in some cases, the noise generated by these machines has become a serious problem. Usually, the centrifugal fan noise is dominated by tones at the blade passage frequency and its higher harmonics. This is a consequence of the strong interaction between the flow discharged from the impeller and the volute tongue. The purpose of this study is to develop a prediction method for the noise generated by a centrifugal fan. A three-dimensional numerical simulation of the complete unsteady flow on the whole impeller-volute configuration has been carried out using the computational fluid dynamics code FLUENT®. The unsteady forces applied by the fan blades to the fluid are obtained from the data provided by the simulation. The Ffowcs Williams and Hawkings model extension of Lighthill’s analogy predicts the aerodynamic noise generated by the centrifugal fan from these unsteady forces. Also, the noise generated by the fan has been measured experimentally, and the experimental results have been compared to the numerical results in order to validate the aerodynamic noise prediction methodology. A good agreement has been found between the numerical and the experimental results.
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ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4751-9
PROCEEDINGS PAPER
Prediction of the Aerodynamic Noise Generated by a Centrifugal Fan: Numerical Results and Experimental Validation Available to Purchase
Rafael Ballesteros-Tajadura,
Rafael Ballesteros-Tajadura
Universidad de Oviedo, Gijo´n, Asturias, Spain
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Sandra Velarde-Sua´rez,
Sandra Velarde-Sua´rez
Universidad de Oviedo, Gijo´n, Asturias, Spain
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Juan Pablo Hurtado-Cruz,
Juan Pablo Hurtado-Cruz
Universidad de Oviedo, Gijo´n, Asturias, Spain
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Bruno Pereiras-Garci´a
Bruno Pereiras-Garci´a
Universidad de Oviedo, Gijo´n, Asturias, Spain
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Rafael Ballesteros-Tajadura
Universidad de Oviedo, Gijo´n, Asturias, Spain
Sandra Velarde-Sua´rez
Universidad de Oviedo, Gijo´n, Asturias, Spain
Juan Pablo Hurtado-Cruz
Universidad de Oviedo, Gijo´n, Asturias, Spain
Bruno Pereiras-Garci´a
Universidad de Oviedo, Gijo´n, Asturias, Spain
Paper No:
FEDSM2006-98507, pp. 329-335; 7 pages
Published Online:
September 5, 2008
Citation
Ballesteros-Tajadura, R, Velarde-Sua´rez, S, Hurtado-Cruz, JP, & Pereiras-Garci´a, B. "Prediction of the Aerodynamic Noise Generated by a Centrifugal Fan: Numerical Results and Experimental Validation." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 2: Fora. Miami, Florida, USA. July 17–20, 2006. pp. 329-335. ASME. https://doi.org/10.1115/FEDSM2006-98507
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