Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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A Study on the Structure of Turbulent Flow Fields According to the Operating Loads of Three-Dimensional Small-Size Axial Fan by Large Eddy Simulation

대규모와 모사에 의한 3차원 소형축류홴의 운전부하에 따른 난류유동장 구조에 대한 연구

  • Kim, Jang-Kweon (Department of Power System Engineering, Kunsan National University) ;
  • Oh, Seok-Hyung (School of Mechanical Engineering, Kunsan National University)
  • 김장권 (군산대학교 동력기계시스템공학과) ;
  • 오석형 (군산대학교 기계공학부)
  • Received : 2015.08.05
  • Accepted : 2015.10.02
  • Published : 2015.10.31
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Abstract

The unsteady-state, incompressible and three-dimensional large eddy simulation(LES) was carried out to analyze the structure of turbulent flow fields according to the operating loads of three-dimensional small-size axial fan(SSAF). LES shows the best prediction performance in comparison with any other Reynolds averaged Navier-Stokes(RANS) method because static pressure coefficients analysed by LES show a little bit larger than measurements including all flow coefficients. Also, it can be known that the wake of SSAF is divided into from axial flow to radial flow before and behind stall region according to the increase of static pressure through LES analysis.

Keywords

References

  1. T. Adachi, M. Yamashita, K. Yasuhara, and T. Kawai, 1996, "Effects of Operating Conditions on the Flow in the Moving Blade Passage of a Single Stage Axial-Flow Fan", Proc. of the 6th Int. Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Vol. 2, pp. 199-208.
  2. S. C. Morris, J. J. Good and J. F. Foss, 1998, "Velocity Measurements in the Wake of an Automotive Cooling Fan", Exp. Thermal and Fluid Science, Vol. 17, pp. 100-106. https://doi.org/10.1016/S0894-1777(97)10054-1
  3. J. H. Zhou and C. X. Yang, 2008, "Design and Simulation of the CPU Fan and Heat Sinks", IEEE Trans. on Components and Packaging Technologies, Vol. 31, No. 4, pp. 890-903. https://doi.org/10.1109/TCAPT.2008.2006188
  4. J. W. Kim, J. H. Kim, and K. Y. Kim, 2010, "Flow Analysis and Performance Evaluation of a Ventilation Axial-Flow Fan Depending on the Position of Motor", J. of Fluid Machinery, Vol. 13, No. 4, pp. 25-30.
  5. J. Hurault, S. Kouidri, F. Bakir, and R. Rey, 2010, "Experimental and Numerical Study of the Sweep Effect on Three-Dimensional Flow Down- stream of Axial Flow Fans", Flow Measurement and Instrumentation, Vol. 21, pp. 155-165. https://doi.org/10.1016/j.flowmeasinst.2010.02.003
  6. J. O. Han, S. Y. Lee, S. H. Yu, and J. K. Lee, 2006, "The Study on Performance of an Axial Fan with Centrifugal Type Blades in Duct Flow", Proceedings of The 4th National Con- gress on Fluids Engineering, August 23-25, pp. 213-216, Kyungju, Korea.
  7. T. Ito, G. Minorikawa, and Q. Fan, 2009, "Experimental Research for Performance and Noise of Small Axial Fan", Int. J. of Fluid Machinery and Systems, Vol. 2, No. 2, pp. 136-146. https://doi.org/10.5293/IJFMS.2009.2.2.136
  8. S. H. Liu, R. F. Huang, and C. A. Lin, 2010, "Computational and Experimental Investigation of Performance Curve of an Axial Flow Fan Using Downstream Flow Resistance Method", Experi- mental Thermal and Fluid Science, Vol. 34, pp. 827-837. https://doi.org/10.1016/j.expthermflusci.2010.01.011
  9. SC/Tetra(Version 8), 2010, User's Guide, Software Cradle Co., Ltd.
  10. J. K. Kim and S. H. Oh, 2013, "Evaluation of the Turbulence Models on the Aerodynamic Performance of Three-Dimensional Small-Size Axial Fan", J. of the KSPSE, Vol. 18, No. 6, pp. 13-20.
  11. J. K. Kim and S. H. Oh, 2013, "Experimental Study on the Aerodynamic Performance Characteristics of a Small-Size Axial Fan with the Different Depths of Bellmouth", J. of the KSPSE, Vol. 17, No. 6, pp. 73-78.
  12. W. Kim, N. K. Hur, and W. H. Jeon, 2010, "Numerical Analysis of Unsteady Flow Field and Aeroacoustic Noise of an Axial Flow Fan", J. of KSCFE, Vol. 15, No. 4, pp. 60-66.
  13. SYSTAT Software Inc., 2002, TableCurve2D User's Manual, Version 4 for Windows.

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