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The influence of non-uniform impeller on the cross flow fan noise

  • Xi'an Jiaotong University

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)251-256
Number of pages6
JournalKey Engineering Materials
Volume693
DOIs
StatePublished - 2016

Keywords

  • Computational fluid dynamics
  • Cross flow fan
  • Noise prediction
  • Non-uniform impeller

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