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Numerical analysis of aerodynamic noise radiated from cross flow fan

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Abstract

The flow field in a cross flow fan was simulated by solving the 2-D unsteady Reynolds-averaged Navier-Stokes equations. The calculated pressure fluctuations of the blades, the vortex wall, and the rear wall were then used as noise sources to calculate the sound field. The Ffowcs Williams-Hawkings (FW-H) equation was employed to predict the noise field caused by these sources. The predictions show that the rear wall and the vortex wall sources contribute significantly to the total noise and that both the predicted aerodynamic performance and noise agree well with the experimental results.

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Authors and Affiliations

  1. School of Aerospace, Tsinghua University, Bei**g, 100084, China

    Anbang Chen, Song Li & Dongtao Huang

Authors
  1. Anbang Chen
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  2. Song Li
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  3. Dongtao Huang
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Corresponding author

Correspondence to Dongtao Huang.

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Translated from J Tsinghua Univ (Sci & Tech), 2007, 47(2): 236–239 [译自: 清华大学学报(自然科学版)]

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Chen, A., Li, S. & Huang, D. Numerical analysis of aerodynamic noise radiated from cross flow fan. Front. Energy Power Eng. China 2, 443–447 (2008). https://doi.org/10.1007/s11708-008-0063-9

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  • DOI: https://doi.org/10.1007/s11708-008-0063-9

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