고영각에서 물결모양 전단을 갖는 NACA0021 익형의 유동특성에 대한 수치해석적 연구

@article{ART002789474},
author={ 김상덕 },
title={고영각에서 물결모양 전단을 갖는 NACA0021 익형의 유동특성에 대한 수치해석적 연구},
journal={풍력에너지저널},
issn={2093-5099},
year={2021},
volume={12},
number={4},
pages={64-69},
doi={10.33519/kwea.2021.12.4.008},
url={http://dx.doi.org/10.33519/kwea.2021.12.4.008}

TY - JOUR
AU - 김상덕
TI - 고영각에서 물결모양 전단을 갖는 NACA0021 익형의 유동특성에 대한 수치해석적 연구
T2 - 풍력에너지저널
PY - 2021
VL - 12
IS - 4
PB - 한국풍력에너지학회
SP - 64-69
SN - 2093-5099
AB - When the blade of a wind turbine is in stall at a high angle of attack, the flow field is characterized by flow separation over the suction surface of the blade. The flow under high angle of attack causes dynamic instability of the blade and the drop of the lift. A modified NACA 0021 airfoil was used as a passive control method for flow separation in this study. The modified airfoil has a leading edge with a wavy shape. Current unsteady numerical analysis using Spalart-Allmaras Detached Eddy Simulation (SA DES) was conducted to predict the aerodynamic characteristics of the modified NACA 0021 airfoil. This investigation provides a comparison of the aerodynamic characteristics between the baseline model and the undulated model of the NACA 0021 airfoil. The undulated blade used in this study produced higher lift as compared with the baseline model at high angles of attack.
KW - 물결모양 블레이드, 고영각, 난류유동, 비정상 유동
DO - 10.33519/kwea.2021.12.4.008
UR - http://dx.doi.org/10.33519/kwea.2021.12.4.008
ER -

김상덕 (2021). 고영각에서 물결모양 전단을 갖는 NACA0021 익형의 유동특성에 대한 수치해석적 연구. 풍력에너지저널, 12( 4), 64- 69.

김상덕 . 2021, “고영각에서 물결모양 전단을 갖는 NACA0021 익형의 유동특성에 대한 수치해석적 연구”, 풍력에너지저널, vol. 12, no. 4, pp. 64-69. Available from: doi:10.33519/kwea.2021.12.4.008

김상덕 “고영각에서 물결모양 전단을 갖는 NACA0021 익형의 유동특성에 대한 수치해석적 연구” 풍력에너지저널 12.4 pp. 64-69 (2021): 64.

김상덕 . 고영각에서 물결모양 전단을 갖는 NACA0021 익형의 유동특성에 대한 수치해석적 연구 풍력에너지저널 [Internet]. 2021; 12( 4), : 64-69. Available from: doi:10.33519/kwea.2021.12.4.008

김상덕 . “고영각에서 물결모양 전단을 갖는 NACA0021 익형의 유동특성에 대한 수치해석적 연구” 풍력에너지저널 12, no.4 (2021): 64-69. doi: 10.33519/kwea.2021.12.4.008

홈 권호 목록 논문 목록 논문 상세

고영각에서 물결모양 전단을 갖는 NACA0021 익형의 유동특성에 대한 수치해석적 연구

풍력에너지저널

약어 : -

2021, vol.12, no.4, pp.64 - 69

DOI : 10.33519/kwea.2021.12.4.008

발행기관 : 한국풍력에너지학회

연구분야 : 기타공학

김상덕¹

¹초당대학교

인용한 논문 수 : - 서지 간략 보기

초록

When the blade of a wind turbine is in stall at a high angle of attack, the flow field is characterized by flow separation over the suction surface of the blade. The flow under high angle of attack causes dynamic instability of the blade and the drop of the lift. A modified NACA 0021 airfoil was used as a passive control method for flow separation in this study. The modified airfoil has a leading edge with a wavy shape. Current unsteady numerical analysis using Spalart-Allmaras Detached Eddy Simulation (SA DES) was conducted to predict the aerodynamic characteristics of the modified NACA 0021 airfoil. This investigation provides a comparison of the aerodynamic characteristics between the baseline model and the undulated model of the NACA 0021 airfoil. The undulated blade used in this study produced higher lift as compared with the baseline model at high angles of attack.

키워드

물결모양 블레이드, 고영각, 난류유동, 비정상 유동

참고문헌(9)

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