Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
권호 표지
DOI QR코드

DOI QR Code

Three-Dimensional Computational Flow Analysis of a Sirocco Fan for a Package Air Conditioner by LES

LES에 의한 PAC용 시로코홴의 3차원 전산유동해석

  • Kim, J.K. (Department of Power System Engineering, KunSan National University) ;
  • Oh, S.H. (School of Mechanical & Automative Engineering, KunSan National University)
  • 김장권 (군산대학교 동력기계시스템공학과) ;
  • 오석형 (군산대학교 기계공학부)
  • Received : 2012.04.10
  • Accepted : 2012.05.10
  • Published : 2012.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

The computational flow analysis using LES technique was carried out to investigate the flow characteristics of a sirocco fan under the maximum flowrate condition. The commercial SC/Tetra software was used for this unsteady and three-dimensional numerical analysis. In consequence, because a flow is unstable within the range of about 50% of a housing depth from a bellmouth around the cutoff region, the passing flow through the blade cascade occurred on the X-Y plane is a slow or a reverse with approaching to the housing inlet. Also, the secondary flow shows on the radial plane of a housing, and its vortex center exists within about 33% of a housing depth from a bellmouth except the cutoff region. Moreover, the flow occurring on the exit plane of a sirocco fan shows a complex secondary flow.

Keywords

References

  1. Morinushi, K., 1987, "The Influence of Geometric Parameters on F.C. Centrifugal Fan Noise", ASME J. of vibration, acoustics, stress, and reliability in design, Vol. 109, pp. 227-234. https://doi.org/10.1115/1.3269425
  2. Kim, J. K., 1995, "Study on the Development for Low Noise Package Air-Conditioner", Trans. of the KSME, Vol. 19, No. 10, pp. 2710-2719.
  3. Kim, J. K., 1999, "An Experimental Study on the Optimum Design of Sirocco Fan by Using Taguchi Method", Trans. of the KSME (Part B), Vol. 23, No. 6, pp. 761-768.
  4. Yoo, S. Y. and Lee, D. W., 2002, "An Experimental Study on Performance and Flow Characteristics of Automotive Sirocco Fan", Trans. of the SAREK, Vol. 14, No. 11, pp. 954-963.
  5. Ha, J. H. and Moon, Y. J., 2000, "Computational Analysis of the Three-Dimensional Flow Charact- eristics and Performance of Sirocco Fan", Trans. of the SAREK, Vol. 12, No. 7, pp. 674-679.
  6. Jeon, W. H., Rew, H. S., Song, S. B. and Shon, S. B., 2004, "A Study on the Flow and Aeroacoustic Characteristics of the Sirocco Fan of OTR(Over The Range)", J. of Fluid Machinery, Vol. 7, No. 1, pp. 17-23. https://doi.org/10.5293/KFMA.2004.7.1.017
  7. Lee, D. W. and Yoo, S. Y., 2004, "A Numerical Study for Performance of Automotive HVAC System", Trans. of the SAREK, Vol. 16, No. 11, pp. 1084-1091.
  8. Park, S. T., Choi, Y. S., Park, M. S., Kim, C. H. and Kwon, O. M., 2005, "A Study on the Performance Characteristics of the Sirocco Fan in a Range Hood", J. of Fluid Machinery, Vol. 8, No. 2, pp. 9-15. https://doi.org/10.5293/KFMA.2005.8.2.009
  9. SC/Tetra(Version 8), 2010, User's Guide, Software Cradle Co., Ltd.