터빈 로터의 후류 유동장 해석을 위한 간략화 수치모델 개발

@article{ART002482605},
author={ 신종현 and 장세명 },
title={터빈 로터의 후류 유동장 해석을 위한 간략화 수치모델 개발},
journal={풍력에너지저널},
issn={2093-5099},
year={2019},
volume={10},
number={2},
pages={24-30},
doi={10.33519/kwea.2019.10.2.003},
url={http://dx.doi.org/10.33519/kwea.2019.10.2.003}

TY - JOUR
AU - 신종현
AU - 장세명
TI - 터빈 로터의 후류 유동장 해석을 위한 간략화 수치모델 개발
T2 - 풍력에너지저널
PY - 2019
VL - 10
IS - 2
PB - 한국풍력에너지학회
SP - 24-30
SN - 2093-5099
AB - In the design of wind farms, the loss of power should be seriously considered for downstream wind turbines that emerge inside the wake region of upstream ones. The rotation of the upstream wind-front rotor generates a high-vorticity wake with turbulence, and a suitable model is required in computational fluid dynamics (CFD) to predict the deficit of energy of the downstream turbine for the given configuration. A novel numerical model based on the classical momentum theory is proposed in this study for a single wind turbine, which is proposed with a couple of tuning parameters applied to Reynolds-averaged Navier-Stoke (RANS) analysis, where two parameters reflect axial and rotational wake motion, simply tuned with experimental wind-tunnel data and its corresponding large eddy simulation (LES) results. The simplified numerical model has an average error of 3.1 % in the wake velocity profile in the results of LES and experiments, and the wake deficit value comes closer to the Betz limit as the tip speed ratio goes to the rated value, resulting in a remarkable reduction in computational load compared with advanced methods such as LES.
KW - 풍력 발전기, 수치모델, 풍력 발전단지, 레이놀즈 평균 나비에 - 스톡스
DO - 10.33519/kwea.2019.10.2.003
UR - http://dx.doi.org/10.33519/kwea.2019.10.2.003
ER -

신종현 and 장세명 (2019). 터빈 로터의 후류 유동장 해석을 위한 간략화 수치모델 개발. 풍력에너지저널, 10( 2), 24- 30.

신종현 and 장세명 . 2019, “터빈 로터의 후류 유동장 해석을 위한 간략화 수치모델 개발”, 풍력에너지저널, vol. 10, no. 2, pp. 24-30. Available from: doi:10.33519/kwea.2019.10.2.003

신종현 장세명 et al. “터빈 로터의 후류 유동장 해석을 위한 간략화 수치모델 개발” 풍력에너지저널 10.2 pp. 24-30 (2019): 24.

신종현 , 장세명 . 터빈 로터의 후류 유동장 해석을 위한 간략화 수치모델 개발 풍력에너지저널 [Internet]. 2019; 10( 2), : 24-30. Available from: doi:10.33519/kwea.2019.10.2.003

신종현 and 장세명 . “터빈 로터의 후류 유동장 해석을 위한 간략화 수치모델 개발” 풍력에너지저널 10, no.2 (2019): 24-30. doi: 10.33519/kwea.2019.10.2.003

홈 권호 목록 논문 목록 논문 상세

터빈 로터의 후류 유동장 해석을 위한 간략화 수치모델 개발

풍력에너지저널

약어 : -

2019, vol.10, no.2, pp.24 - 30

DOI : 10.33519/kwea.2019.10.2.003

발행기관 : 한국풍력에너지학회

연구분야 : 기타공학

신종현¹ , 장세명²

¹군산대학교 기계공학과

²군산대학교

인용한 논문 수 : - 서지 간략 보기

초록

In the design of wind farms, the loss of power should be seriously considered for downstream wind turbines that emerge inside the wake region of upstream ones. The rotation of the upstream wind-front rotor generates a high-vorticity wake with turbulence, and a suitable model is required in computational fluid dynamics (CFD) to predict the deficit of energy of the downstream turbine for the given configuration. A novel numerical model based on the classical momentum theory is proposed in this study for a single wind turbine, which is proposed with a couple of tuning parameters applied to Reynolds-averaged Navier-Stoke (RANS) analysis, where two parameters reflect axial and rotational wake motion, simply tuned with experimental wind-tunnel data and its corresponding large eddy simulation (LES) results. The simplified numerical model has an average error of 3.1 % in the wake velocity profile in the results of LES and experiments, and the wake deficit value comes closer to the Betz limit as the tip speed ratio goes to the rated value, resulting in a remarkable reduction in computational load compared with advanced methods such as LES.

키워드

풍력 발전기, 수치모델, 풍력 발전단지, 레이놀즈 평균 나비에 - 스톡스

참고문헌(18)

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