유체기계공업학회:학술대회논문집

Korean Society for Fluid machinery (한국유체기계학회)
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The Study on the Aeroacoustic Characteristics of an Axial Fan for an Air-Conditioner

공기조화기 축류팬의 공력소음 특성 연구

  • 이수영 (삼성전자(주) 생활가전총괄) ;
  • 한재오 (삼성전자(주) 생활가전총괄) ;
  • 김태헌 (삼성전자(주) 생활가전총괄) ;
  • 이재권 (삼성전자(주) 생활가전총괄) ;
  • 전완호 (쎄딕(주) 유동소음연구소)
  • Published : 2006.08.23
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Abstract

This paper proposes a new computational aeroacoustics method for an axial fan analysis. The major aeroacoustic noise source of an outdoor air-conditioner is the axial fan. It was revealed that the dominant noise source is the aerodynamic interactions between the rotating blade and stationary orifice. Many researches were focused on the fan only case. However, it does not fit to a real outdoor unit of air-conditioner. Especially, the inlet part of the axial fan of real system case is complex and not uniform. So, in order to identify the dominant noise source of axial fan, full outdoor unit analysis is important. Transient CFD analysis of full system was performed by commercial CFD code - SC/Tetra. Dominant noise source of the system was calculated by commercial CFN code - FlowNoise. The results show that not only BPF peaks but also broadband noise are similar to the measured data.

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