Numerical simulation of the impacts of the spatial structure of urban canopy on the regional wind circumstance

The accuracy and the applicability of LK model in the field of urban wind simulation, which fixes the structural defects of the standard k model, are further verified. Also, the paper analyzes the impacts of the spatial structure of urban canopy on the regional wind circumstance, and proposes fitting formula of relative region wind speed, building coverage ratio and building space ratio, based on the wind analysis of Sanpailou area in Nanjing under the typical summer wind speed. Besides, the paper explores the exhibition of the wind condition in different city configurations and different types of architecture. From the perspective of the city, the paper explores the connection between the wind circumstance and the spatial structure of urban canopy, which including the architectural composition and building space forms.