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풍력 블레이드의 결빙에 의한 공력 영향성 전산 예측COMPUTATIONAL PREDICTION OF ICING EFFECTS ON AERODYNAMIC CHARACTERISTICS OF A WIND TURBINE BLADE
- Other Titles
- COMPUTATIONAL PREDICTION OF ICING EFFECTS ON AERODYNAMIC CHARACTERISTICS OF A WIND TURBINE BLADE
- Issue Date
- 2013
- Publisher
- 한국전산유체공학회
- Keywords
- 풍력블레이드(Wind Turbine Blade); 전산유체역학(CFD); 공력특성(Aerodynamic Characteristics); 결빙증식(Ice Accretion)
- Citation
- 한국전산유체공학회지, v.18, no.3, pp 51 - 59
- Pages
- 9
- Indexed
- KCI
- Journal Title
- 한국전산유체공학회지
- Volume
- 18
- Number
- 3
- Start Page
- 51
- End Page
- 59
- ISSN
- 1598-6071
- Abstract
- A significant change in aerodynamic characteristics of wind turbine blade can occur by ice formed on the surface of the blade operated in cold climate. The ice accretion can result in performance loss, overloading due to delayed stall, and excessive vibration associated with mass imbalance. In this study, the impact of ice accretion on the aerodynamic characteristics of NREL 5MW wind turbine blade sections is examined by a CFD-based method. It is shown that the thickness of ice accretion increases from the root to the tip and the effects of icing conditions such as relative wind velocity play a significant role in the shape of ice accretion. In addition, the computational results are used to assess the degradation in the lift and drag coefficients of the blade sections.
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