Journal of the Korean Society for Aviation and Aeronautics (한국항공운항학회지)

The Korean Society for Aviation and Aeronautics (한국항공운항학회)
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An Experimental Study on Aerodynamic Performance of a Rotor-Blade Configuration under Cross-Wind Conditions

측풍 조건을 고려한 로터블레이드 형상의 공력성능에 대한 실험적 연구

  • 강승희 (전북대학교 항공우주공학과) ;
  • 유기완 (전북대학교 항공우주공학과)
  • Received : 2017.04.14
  • Accepted : 2017.06.29
  • Published : 2017.06.30

Abstract

In the present study, a wind tunnel test for a rotor-blade configuration was conducted to investigate a basic aerodynamic performance and a effect of the cross wind. The diameter of the configuration was 1.46 m and the test was carried out for both a clean and a tripped configurations. The boundary layer for the trip configuration was simulated by zig-zag tape and the test performed on constant-velocity and constant-rotational modes. It was shown that the test result for the tripped configuration reduces the maximum power coefficient by 9.4% ~ 12.1% compared to the clean one. Within $5^{\circ}$ of the flow angle, there is no significant loss of power, however, the coefficient is reduced by 5.3% ~ 36.7% in the range of $10^{\circ}{\sim}30^{\circ}$.

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