사보니우스 소형풍력터빈 수치해석용 격자시스템 평가

김철규; 이상문; 전석윤; 윤준용; 장춘만

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자료유형: 학술저널

저자정보: 김철규 이상문 전석윤 윤준용 장춘만

저널정보: 한국수소및신에너지학회 한국수소및신에너지학회논문집 한국수소 및 신에너지학회 논문집 제27권 제5호

발행연도: 2016.10

수록면: 547 - 553 (7page)

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This paper presents the effect of a grid system on the performance of a small Savonius wind turbine installed side-by-side. Turbine performance is compared using three different grid systems; tetrahedral grid having a concentrated circular grid around turbine rotors, the tetrahedral grid having a concentrated rectangular grid around turbine rotors and the symmetric grid having a concentrated tetrahedral grid near the turbine rotor blades and a hexahedral grid. The commercial code, SC/Tetra has been used to solve the three-dimensional unsteady Reynoldsaveraged Navier-Stokes analysis in the present study. The Savonius turbine rotor has a rotational diameter of 0.226m and an aspect ratio of 1.0. The distance between neighboring rotor tips keeps the same length of the rotor diameter. The variations of pressure and power coefficient are compared with respect to blade rotational angles and rotating frequencies of the turbine blade. Throughout the comparisons of three grid systems, it is noted that the symmetric grid having a concentrated tetrahedral grid near the turbine rotor blades and a hexahedral grid has a stable performance compared to the other ones.

#격자계 #사보니우스 터빈 #소형 풍력 단지 #전산유체역학 #풍력터빈 #Computational fluid dynamics #Grid system #Savonius turbine #Small wind farm #Wind turbine

참고문헌 (12)

참고문헌 신청

H. S. Oh / 사진으로 보는 태기산 풍력 발전소

K. Matthias / 2012 / Energy Exchange in an Array of Vertical-Axis Wind Turbines / J. Turbulence 13(38):1~13

한국에너지기술연구원 / 국내풍력발전 현황

박근성 / 2015 / 풍력발전단지의 후류손실 및 터빈 재배치에 관한 연구 / 한국태양에너지학회 논문집 35(3):17~26

S. H. Lee / 2014 / Effects of Turbulence Intensities on Wake Models of Horizontal Wind Turbine / J. Compt. Struct. Eng. Inst. Korea 27(4):273~279

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