Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Large Eddy Simulation on the Vorticity Characteristics of Three-Dimensional Small-Size Axial Fan with Different Operating Points

운전점에 따른 3차원 소형축류홴의 와도 특성에 대한 대규모 와 모사

  • 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 : 2016.09.26
  • Accepted : 2016.12.01
  • Published : 2016.12.31
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Abstract

The unsteady-state, incompressible and three-dimensional large-eddy simulation(LES) was carried out to evaluate the vorticity distribution of a small-size axial fan(SSAF). The X-component vorticity profiles developed around blade tips turn from axial to radial, and diminish the density of distribution according to the increase of static pressure. Otherwise, the Z-component vorticity profiles evenly develop at the region larger than the half radial distance of blade at the operating points of A and B, partly at the trailing-edge region of blade and radially over bellmouth according to the increase of static pressure.

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References

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Cited by

  1. Large Eddy Simulation on the Characteristics of Turbulent Flow Fields at the Maximum Flowrate of a Three-Dimensional Helical Axial Fan with the Different Depth of Bellmouth vol.23, pp.2, 2019, https://doi.org/10.9726/kspse.2019.23.2.012
  2. A Study on the Structure of Instantaneous Flow Fields of One-Pitched Small-Size Helical Axial Fan by Large Eddy Simulation vol.23, pp.3, 2016, https://doi.org/10.9726/kspse.2019.23.3.027