도심 풍환경 통합 비행 시뮬레이션을 이용한 강남지역 UAM 비행 위험 분석

The urban air mobility (UAM) market has grown rapidly in recent years. While UAM is expected to be deployed within a few years, ensuring safety is essential for successful implementation. One of the factors related to UAM safety is the urban wind environment. Characterized by strong and unpredictable turbulence and building-induced winds due to complex urban topography, the urban wind environment poses significant risks to UAMs, which are lightweight and slow. This study analyzes the flight hazards of UAMs caused by urban wind environments. A realistic urban wind environment was simulated by combining the Weather Research & Forecasting model with large-eddy simulation. By integrating the simulated urban wind environment with two types of UAM simulators, a UAM flight database was constructed. Qualitative and quantitative analyses of the flight database identified hazardous wind speeds caused by crosswinds and vertical winds for the two UAM types. For the Gangnam area, hazardous regions were predicted based on wind speeds. The results revealed that the hazard from crosswind was influenced by shear layers, corner effects, and atmospheric boundary layer, while hazard from vertical wind was primarily occurred at wake regions.