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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 $10^{\circ}{\sim}30^{\circ}$.

Keywords

References

  1. Lange, R. H., "A Review of Advanced Turboprop Transport Activities," AGARD-CP-366, 1984, pp. 1-1-1-16.
  2. Welge, H. R., "Prop-Fan Integration at Cruise Speed," AGARD Paper 33, 1981.
  3. Philippe, J. J., "Consideration on Wind-Tunnel Testing Techniques for Rotorcraft," AGARD R 781, pp. 8-1-pp. 8-34, 1990.
  4. Burger, C., "Propeller Performance Analysis and Multidisciplinary Optimization Using a Genetic Algorithm," PhD. Dissertation, Auburn University, 2007.
  5. Borst, H. W., "Summary of Propeller Design Procedures and Data, Vol. I. Aerodynamic Design and Installation," AD-774831, 1973.
  6. Barber, D. J., "Performance Evaluation of Full Scale Propellers by Wind Tunnel Test," AGARD-CP-366, 1984, pp. 14-1-14-12.
  7. Barlow, J. B., Rae, W. H., and Pope, A., Low-Speed Wind Tunnel Testing, Wiely-Interscience, 3rd Ed., 1999.
  8. "A Study on Estimation of Propulsion System Efficiency of Electric Power Unmanned Aircraft," Korean Air Navigation Society, Vol. 23, No. 3, 2015, pp. 1 to 7.
  9. KAFA Subsonic Wind Tunnel, http://www.afa.ac.kr/index_frame_kk.html.
  10. Jonkman, J., Butterfield, S., Musial, W., and Scott, G., "Definition of a 5-MW Reference Wind Turbine for Offshore System Development; National Renewable Energy Laboratory,"NREL TP-500-38060, 2009.
  11. Kang, S.-H. and Ryu, K.-W., "An Experimental Study on Wake Flow-Field of NREL 5 MW Wind Turbine Model," J. of The Korean Society for Aeronautical & Space Sciences, Vol. 45, No. 2, 2007.
  12. Martin, H. R., "Development of Scale Model Wind Turbine for the Testing of Offshore Floating Wind Turbine Systems," Ms Thesis, The University of Maine, 2011