CFD 해석에 의한 도시의 풍환경 영향 평가 및 해석 방법에 관한 연구

A Study on the Evaluation of Wind Environment and Analytical Method Using CFD Analysis

Recently, Artificial and irregular wind load is being occured because of the high-rise and high-density construction trends in the city. The wind environment problem of city is one of the heat island phenomenon causes. In the past, the city was focused on development of scale. But nowadays, in the environmental aspects of residents and pedestrians, the wind environmental awareness is growing. The three methods of wind environmental assessment are such as numerical methods, experimental methods and analytical methods. But, the numerical method by measure is nothing but impact assessment on the current state of the city can't be a new alternative design assessment aspects of wind environmental improvement. So, the experimental method or the analytical method must be solve this problem. This paper show the reliability of CFD(computational fluid dynamics) analysis by comparing analytical result data with wind tunnel test result data based on the wind factor of measured data. Through this study, the applicability of CFD analysis that understand three-dimensional airflow characteristics demonstrated on environmental impact assessment is demonstrated. In this study, analytical results and wind tunnel results tend to match measured data results. as a result, We deem that the sufficient wind environmental assessment by CFD analysis is possible from the planning stage of large complex and high-rise buildings.