Architectural form design is crucial to building indoor and outdoor natural ventilation, and elevated building design is one of the methods for improving the outdoor wind environment. Through Integrating computational fluid dynamics (CFD) simulation with ...
More.
Architectural form design is crucial to building indoor and outdoor natural ventilation, and elevated building design is one of the methods for improving the outdoor wind environment. Through Integrating computational fluid dynamics (CFD) simulation with architectural design, an informed decision for architectural design is provided for better architectural design schemes. CFD simulation was used to explore the impacts of elevated heights on the XJTLU Central Building's wind environment at the pedestrian height around the building. Results show that the elevated design of the building has a good effect on improving the wind environment at the pedestrian height of 1.5 m around the building. For this study case and similar height buildings, the elevated design can increase the wind speed of the 1.5 m pedestrian height in the windward area of the building when the elevated height is 2.4~3.0 m. When the elevated design height is above 3.0 m, the elevated design has little impact on the 1.5 m height wind speed at the windward area of the building. On this basis, the impact of various building heights and elevated widths on the pedestrian height wind speeds were explored. Results show that when the building height is between 24 and 72 m, increasing the building height can increase the wind speed at pedestrian height in the high wind speed area of the windward area, and gradually reduce the wind speed of the pedestrian height in the low wind speed at the windward area of the building. When the total height of the building and the elevated height is unchanged, results show that increasing the elevated width of the building can increase the pedestrian height wind speeds in the high wind speed area of the windward area and has no significant impact on the pedestrian height wind field distribution in the low wind speed area of the windward area.
Less.