융복합기술연구소 논문집 (Journal of Institute of Convergence Technology)

한국교통대학교 융복합기술연구소 (Institute of Convergence Technology)
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고성능 엇회전식 축류팬의 공력특성에 대한 전산해석

Numerical analyses on the Aerodynamic Characteristics of a Counter-rotating Axial Flow Fan

  • 조이상 (한성대학교 기계시스템공학과) ;
  • 조진수 (한양대학교 기계공학부)
  • Cho, Leesang (Department of Mechanical Systems Engineering, Hansung University) ;
  • Cho, Jinsoo (School of Mechanical Engineering, Hanyang University)
  • 투고 : 2015.04.30
  • 심사 : 2015.05.21
  • 발행 : 2015.05.31
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초록

Numerical analyses on the aerodynamic characteristics of a counter rotating axial flow fan is carried out using the frequency domain panel method. Front rotor and rear rotor blades of a counter rotating axial fan are designed by using the simplified meridional flow analysis method with the radial equilibrium equation and the free vortex design condition, according to design requirements. Performance characteristics of a counter rotating axial flow fan are estimated for the variation of design parameters such as the hub to tip ratio, the taper ratio and the solidity. Pressure losses were higher at leading edge and hub region of rotor blades. Characteristic curve of the counter rotating fan was overpredicted without consideration of viscous effect.

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