Improving accuracy in simulation of urban wind flows by dynamic downscaling WRF with OpenFOAM

Abstract Managing urban air systems is now on top priority. The local wind flow at the building scale is governed by the urban morphology, which is difficult to be captured by the parameterizations of the regional scale weather models. In this study, we dynamically downscaled the 1 km resolution wind flow simulated by the WRF-UCM (Weather Research and Forecasting with Urban Canopy Model) to the building scale (