Spectral-Element Simulation of the Turbulent Flow in an Urban Environment

The mean flow and turbulence statistics of the through a simplified urban environment, which is an active research area in order to improve knowledge turbulent cities, investigated. This useful for civil engineering, pedestrian comfort health concerns caused by pollutant spreading. In this work, we provide analysis obtained from well-resolved large-eddy simulations (LES). A detailed database reveals impact geometry array on characteristics provides good description features within environment. most prominent complex include coherent vortical structures such as so-called arch vortex, horseshoe vortex roof vortex. These have been identified statistics. influence environment (and particularly street width building height) overall behavior has also studied. Finally, LES results were compared with available experimental discuss differences similarities between respective configurations.