The aerodynamic and noise characteristics of centrifugal fan with partially tilted tongue
Ye Yuan,
Youhong Xiao,
Pingjian Ming
et al.
Abstract:Tilted tongue is one of the very effective solutions to reduce the noise of centrifugal fans. In this study, the accuracy of the numerical simulations is verified by experimentally measured aerodynamic performance and acoustic spectra. Two localized tilting designs of the tongue are proposed with the aim of reducing the aerodynamic noise of the centrifugal fan. Numerical results show that the different approaches significantly affect the noise reduction of the fan, with the best design exhibiting up to 2.33 dB… Show more
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