The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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A Study on the Flow Characteristics and Noise Predictions around the Shroud Fan using the Aero-acoustic Noise Model

공력소음 모델을 이용한 슈라우드 팬 주위의 유동특성 및 소음예측에 관한 연구

  • 모장오 (ATES CFD 컨설팅 사업부) ;
  • 이영호 (한국해양대학교 기계.정보 공학부)
  • Received : 2009.01.12
  • Accepted : 2009.04.06
  • Published : 2009.06.01
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Abstract

InThe purpose of this work is to analyze the flow characteristics and aerodynamic noise generated from a shroud fan at a constant 2,100 rpm using LES and FW-H noise model provided in the commercial code, FLUENT. Velocity distributions around the shroud fan obtained by using FLUENT code show good agreement with experimental results. The sound pressure level is decreased by about 6 dB as the distance from the fan increases twice. The directivity at 1st BPF shows a tendency of increasing SPL toward the axis of rotation.

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References

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