Pedestrian wind comfort near a 400 m super-tall building in high and low ambient wind speeds, referred to as Windy and Calm climates, is evaluated by conducting computational fluid dynamics (CFD) simulations. The super-tall building has 15 different configurations and is located at the center of 50 m medium-rise buildings in an urban-like setting. Pedestrian level mean wind speeds near the super-tall building is obtained from three-dimensional (3D), steady-state, Reynolds-Averaged Navier-Stokes (RANS)-based simulations for five incident wind directions (θ = 0°, 22.5°, 45°, 90°, 180°) that are subsequently compared with two wind comfort criteria specified for Calm and Windy climates. Results show a 1.53 times increase in maximum mean wind speed in the urban area after the construction of a square-shaped super-tall building. The escalated mean wind speeds result in a 23%–15% and 36%–29% decrease in the area with “acceptable wind comfort” in Calm and Windy climates, respectively. The area with pedestrian wind comfort varies significantly with building configuration and incident wind direction, for example, the configurations with sharp corners, large plan aspect ratios and, frontal areas and the orientation consistently show a strong dependency on incident wind direction except for the one with rounded plan shapes. Minor aerodynamic modifications such as corner modifications and aerodynamically-shaped configurations such as tapered and setback buildings show promise in improving pedestrian wind comfort in Windy climate.

通过进行计算流体动力学 (CFD) 模拟来评估在高和低环境风速（称为风和平静气候）下 400 m 超高层建筑附近的行人风舒适度。这座超高层建筑有15种不同的配置，位于50 m中层建筑的中心，具有城市般的环境。超高层建筑附近的行人水平平均风速是从三维 (3D)、稳态、基于雷诺平均纳维斯托克斯 (RANS) 的五个入射风向 ( θ= 0°、22.5°、45°、90°、180°），随后将其与为平静和多风气候指定的两个风舒适标准进行比较。结果表明，方形超高层建筑建成后，市区最大平均风速提高了1.53倍。升高的平均风速导致在平静和多风气候下具有“可接受的风舒适度”的区域分别下降 23%–15% 和 36%–29%。具有行人风舒适度的区域随建筑物配置和入射风向而显着变化，例如，具有尖角、大平面纵横比的配置以及正面区域和方向一致地表现出对入射风向的强烈依赖，除了具有圆形计划形状。