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.
This work was supported by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (G031678613). This work was also sponsored by the Korea Institute of Energy Research (KIER) as a patr of Students for Technical Experience (IAESTE) program (B6-2427).