한국유체기계학회 논문집 (The KSFM Journal of Fluid Machinery)

한국유체기계학회 (Korean Society for Fluid machinery)
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솔리디티에 따른 H-로터의 공기역학적 특성 및 성능해석

Numerical Analysis of Aerodynamic Characteristics and Performance Analysis on H-rotor with Various Solidities

  • 주성준 (호서대학교, 전자공학전공) ;
  • 이주희 (호서대학교, 자동차ICT공학과)
  • Joo, Sungjun (Electric engineering, Hoseo university) ;
  • Lee, Juhee (Department of ICT automotive engineering, Hoseo university)
  • 투고 : 2013.07.08
  • 심사 : 2016.07.11
  • 발행 : 2016.12.01
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초록

Three-dimensional unsteady numerical analysis has been performed to observe aerodynamic characteristics of a H-rotor. Generally, the structure of the H-rotor is simple but the aerodynamic characteristics are exceptionably complicated since the angle of attacks and incident velocities to a blade are considerably varied according to the azimuth angles and solidities. The blade in the upwind revolution between 0 to 180 degree obtains aerodynamic energy from the free stream but the blade in the downwind revolution between 180 to 360 degree does not. When the rotating speed increases, the blade in the downwind revolution accelerates the air around the blade like a fan and it consumes the energy and shows negative torque in the area. On the other hand, the direction of the free stream is bent because of the interaction between blade the free stream. Therefore, the operation point (highest power coefficient) appears at a lower tip-speed-ratio what it is expected.

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참고문헌

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