Journal of Wind Energy (풍력에너지저널)

Korea Wind Energy Association (한국풍력에너지학회)
권호 표지

Study on the Aerodynamic Characteristics of the Airfoil Element NREL Phase VI Blade by using Downstream Velocity Measurement

후류 측정을 통한 NREL Phase VI 블레이드 익형요소의 공력특성 분석 연구

  • 황은수 (한국항공우주연구원 공력성능연구팀) ;
  • 김양원 (한국항공우주연구원 공력성능연구팀) ;
  • 최영민 (과학기술연합대학원대학교) ;
  • 조태환 (한국항공우주연구원 공력성능연구팀)
  • Received : 2015.11.23
  • Accepted : 2015.12.23
  • Published : 2015.12.31

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Abstract

The downstream velocity of the NREL phsase VI blade was measured by using the 5 hole probe in KARI low speed wind tunnel. The test was designed to study the scale down effect on the wind turbine blade in wind tunnel test. The downstream flow could be used as an indicator for the aerodynamic stall phenomena of the blade. A measurement campaign for the downstream flow on the nominal condition and stall condition was conducted in wind tunnel test. The relation between downstream flow and induction factor was derived on the consumption of far boundary condition. X=2.0R position was selected as a far boundary position and the measurement result was compared with the BEMT analysis results. The comparison result shows that downstream measurement well agreed with the BEMT analysis.

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