Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Large Eddy Simulation on the Drag and Static Pressure Acting on the Blade Surface of Three-Dimensional Small-Size Axial Fan with Different Operating Loads

운전부하에 따른 3차원 소형축류홴 날개표면에 작용하는 정압과 항력에 대한 대규모와 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 : 2017.01.10
  • Accepted : 2017.03.30
  • Published : 2017.04.30
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Abstract

The large-eddy simulation(LES) was carried out to evaluate the drag and static pressure acting on the blade surface of a small-size axial fan(SSAF) under the condition of unsteady-state, incompressible fluid and three-dimensional coordination. The axial component of drag coefficient increases with the increase of operating load, but the radial components have negligible sizes regardless of operating loads. Otherwise, the static pressures acting on the blade surfaces of SSAF show different distributions around the operating point of D equivalent to the stall. Also, with the increase of operating load, the static pressures acting on the pressure and suction surfaces of blade concentrate at the tips and leading-edges as a whole.

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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, 2017, https://doi.org/10.9726/kspse.2019.23.3.027