Journal of Wind Energy (풍력에너지저널)

Korea Wind Energy Association (한국풍력에너지학회)
권호 표지

Numerical Study of Rotor-Tower Interaction for Horizontal Axis Wind Turbine

수평축 풍력터빈의 로터-타워 공력 간섭현상에 대한 수치적 연구

  • 김재원 (한국과학기술원, 항공우주공학과) ;
  • 유동옥 (한국과학기술원, 항공우주공학과) ;
  • 권오준 (한국과학기술원)
  • Received : 2011.05.15
  • Accepted : 2011.05.25
  • Published : 2011.06.30

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Abstract

In the present study, numerical unsteady simulations of the NREL Phase VI wind turbine in downwind operation conditions were conducted to investigate rotor-tower interaction. The calculations were performed using an unstructured mesh, incompressible Reynolds-averaged Navier-Stokes flow solver. To capture the unsteady effects associated with the tower shadow between the rotor blades and the tower, the wind turbine was modelled including the rotor, tower, hub, and nacelle. The present results generally showed good agreements with available experimental data. At the lowest wind speed, the pressure distribution was characterized by a complete collapse of the suction peak on the blade when the blade passes through the tower wake. It was found that unsteady effects play a significant role in the response of the blades.

Keywords

Acknowledgement

본 연구는 2010년 에너지 인력 양성 사업의 지원으로 수행되었으며, 이에 대해 깊이 감사를 드립니다. 또한 필요한 계산 시간의 일부는 한국과학기술정보연구원의 슈퍼컴퓨팅응용연구 전략지원프로그램을 통해 지원되었음.