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CFD에 의한 500kW급 수평축 풍력발전용 터빈의 성능평가 및 유동해석에 관한 연구

A Study of Performance Estimate and Flow Analysis of the 500 kW Horizontal-Axis Wind Turbine by CFD

  • 김유택 (한국해양대학교 기관시스템공학부) ;
  • 김범석 (한국해양대학교 대학원 기계공학과) ;
  • 김정환 (규슈공업대학원 기계시스템공학과) ;
  • 남청도 (한국해양대학교 기관시스템공학부) ;
  • 이영호 (한국해양대학교 기계)
  • 발행 : 2002.12.01

초록

The purpose of this 3-D numerical simulation is to calculate and examine the complex 3-D stall phenomena on the rotor blade and wake distribution of the wind turbine. The flow characteristics of 500kW Horizontal Axis Wind Turbine (HAWT) are compared with the calculated 3-D stall phenomena and wake distribution. We used the CFX-TASCflow to predict flow and power characteristics of the wind turbine. The CFD results are somewhat consistent with the BEM (Blade Element Momentum) results. And, the rotational speed becomes faster, the 3-D stall region becomes smaller. Moreover, the pressure distribution on the pressure side that directly gets the incoming wind grows high as it goes toward the tip of the blade. The pressure distribution on the blade's suction side tells us that the pressure becomes low in the leading edge of the airfoil as it moves from the hub to the tip. However, we are not able to precisely predict on the power coefficient of the rotor blade at the position of generating complex 3-D stall region.

키워드

참고문헌

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