The Influence of Non-Uniform Impeller on the Cross Flow Fan Noise

Zhi Qiang Yang; C.J. Wu

doi:10.4028/www.scientific.net/KEM.693.251

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 693The Influence of Non-Uniform Impeller on the Cross...

The Influence of Non-Uniform Impeller on the Cross Flow Fan Noise

Abstract:

The aerodynamic noise of a cross flow fan with uneven blade spacing in room air-conditioner was simulated by computational aerodynamic acoustics (CAA) method. It is detailed to analyze the vorticity distribution of the flow field and the power spectral density of measured points’ pressure fluctuations, and the results demonstrate the non-uniform impeller used in this paper can significantly improve internal flow characteristics. Thus the broadband noise got reduced.

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Periodical:

Key Engineering Materials (Volume 693)

Pages:

251-256

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.693.251

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Online since:

May 2016

Authors:

Zhi Qiang Yang*, C.J. Wu

Keywords:

Computational Fluid Dynamics, Cross Flow Fan, Noise Prediction, Non-Uniform Impeller

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