The effect of multi-scale roughness on the structure of atmospheric turbulence

据估计，“未来的城市”将容纳越来越多的世界人口，这得益于高层建筑的激增，这些建筑最大限度地提高了每个足迹面积的住房和办公室供应。这些建筑及其独特的几何形状塑造了影响行人舒适度和街道空气质量的大气湍流。然而，对现实城市布局的研究却很少。萨里大学的EnFlo实验室进行了一系列风洞实验，旨在探索这些高层建筑的不同几何特征对大气湍流结构的影响，并最终为决策者提供有关城市空气质量的信息。

It is estimated that "the cities of the future" will host an increasing percentage of the world's population thanks to the proliferation of tall buildings that maximise the provision of housing and office per footprint area. These buildings and their characteristic geometries shape the atmospheric turbulence influencing both the pedestrian comfort and the air quality at street level. However, studies on realistic city layouts are rare. A series of wind tunnel experiments within the EnFlo Laboratory, at the University of Surrey, is envisaged to explore the effect of different geometric features of these tall buildings on the structure of the atmospheric turbulence, and ultimately, to inform policy makers on urban air quality.