The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Design Method of the Sirocco Fan Considering Aeroacoustic Performance Characteristics

공력음향학적 특성을 고려한 시로코 팬의 설계 방법

  • 이찬 (수원대학교 기계공학과)
  • Received : 2010.02.10
  • Accepted : 2010.03.19
  • Published : 2010.04.01
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Abstract

A design method of Sirocco fan is developed for constructing 3-D impeller and scroll geometries, and for predicting both the aerodynamic performance and the noise characteristics of the designed fan. The aerodynamic blading design of fan is conducted by blade angle, camber line determinations and airfoil thickness distribution, and then the scroll geometry of fan is designed by using logarithmic spiral. The aerodynamic performance of designed fan is predicted by the meanline analysis with flow blockage, slip and pressure loss correlations. Based on the predicted performance data, fan noise is predicted by two models for cutoff frequency and broadband noise sources. The present predictions for the performance and the noise level of actual fans are well agreed with measurement results.

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References

  1. Jeon, W.H. and Lee, D.J. 1999, “An Analysis of the Flow and Sound Field of a Centrifugal Fan Loaded Near a Wedge," 5th AIAA/CEAS Aeroacoustics Conf., AIAA-99-1830.
  2. Belamri, T., Kouidri, S., Fedala, D. and Rey, R., 2005, “Comparative Study of the Aeroacoustic Behavior of Two Axial Flow Fans with Different Sweep Angles," Proceedings of ASME FEDSM’05.
  3. Carolus, T., Schneider, M. And Hauke, R., 2007, “Axial Flow Fan Broad-band Noise and Prediction," J. of Sound & Vibration, vol. 300, p. 207.
  4. 이기상, 김광용, 최재호, 2009, ‘익형의 형상최적화를 통한 고효율 축류 송풍기 설계,” 유체기계저널, 제11권 제2호, pp.46-54.
  5. 전운학, 1999, 유체기계, 문운당.
  6. Yamazaki, S. and Satoh, R., 1987, “An Experimental Study on the Aerodynamic Performance of Multi-Blade Blowers(2nd report)," 일본기계학회 논문집(B), 제53권 제 485호, pp. 108-113.
  7. Yamazaki, S. and Satoh, R., 1987, “An Experimental Study on the Aerodynamic Performance of Multi-Blade Blowers(3rd report)," 일본기계학회 논문집 (B), 제53권 제 490호, pp. 1730-1735.
  8. 김경호, 박계찬, 이승배, 1999, “시로코 홴 성능 및 공력소음 예측에 관한 연구,” 유체기계저널, 제2권 제4호, pp. 57-64.
  9. 박광진, 이상환, 손병진, 1999, “저소음 고효율 시로코 홴 개발에 관한 연구,” 유체기계저널, 제2권 제2호, pp. 46-56.
  10. Ohta, Y., Gum, E. and Tajima, K., 1991, “An Acoustic Model for Prediction of Centrifugal Blower Noise Induced by Blade Discharge Flow around the Scroll Cutoff," Yokohama International Gas Turbine Congress Proceedings, pp. 101-108.
  11. Mugridge, B.D., 1976, “Noise Characteristics of Axial and Centrifugal Fans as Used in Industry," Shock and Vibration Digest, vol. 45, no.3.
  12. Lowson, M.V., 1993, “Assessment and Prediction Model for Wind Turbine Noise," Flow Solution Report 93/06, pp. 1-46.
  13. 이찬, 2010, “송풍기 설계 및 공력음향학적 성능해석 방법,” 고효율 저소음 송풍기 개발사업단 workshop 초록집, pp. 71-76.
  14. 김은석, 2006, “O-fan 시험결과 보고서,” O-fan.