풍력에너지 저널 (Journal of Wind Energy)

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Info. Vol.8 - No.1 (2017.06.30)
DOI kwea.2017.8.1.005
Title 반전변환 기법을 이용한 대칭형 복합건물의 풍력자원평가 (Wind Resource Assessment of a Symmetrical Building Complex Using a Mirroring Transformation Technique)
Authors 알렉산더 매널*, 김현구**, 강용혁**
Institutions * 한국에너지기술연구원, 신재생에너지자원센터 인턴연구원(독일 Technical University Munich, Mechanical Eng.), ** 한국에너지기술연구원, 신재생에너지자원센터 (교신저자), *** 한국에너지기술연구원, 신재생에너지자원센터
Abstract Despite the excellency of unsteady flow simulation around urban building forest, Large Eddy Simulation (LES) is still a heavy tool due to computation time bottleneck. This paper introduces a simple wind resource assessment method by reducing number of LES simulation cases using geometrical symmetry of a building complex. As a demonstration case, wind resource assessment of Daejeon Government Complex (DGC) consisting of four symmetrical blocks was carried out. It was possible to reduce wind directional simulations from 16 to 3 cases by mirroring transformation using four symmetric axes of the building Also, it was confirmed that identification of prevailing wind direction and ventilation pathway within a building complex is crucial for Building-Integrated Wind Turbine (BIWT) siting.
Keyword Large Eddy Simulation(LES; 대와류모사), Building-Integrated Wind Turbine(BIWT; 건물일체형 풍력터빈), Mirroring Transformation(반전변환), Symmetric Building Complex(대칭형 복합건물), Daejeon Government Complex(DGC; 대전정부청사)
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