Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Urban climate simulation: coupling of mesoscale meteorological model with building-resolved neighborhood CFD simulation

Jan Carmeliet 1, Aytaç Kubilay 1, Dominik Strebel 1, Dominique Derome 2
1 ETH Zurich, Switzerland
2 Université de Sherbrooke, Canada

Abstract: The understanding of the local urban climate requires the resolved representation of the built environment and must consider explicitly all environmental loading. To do so, we present a CFD-based computational framework that includes comprehensively all relevant physical processes (sun, wind, rain, etc.) at local scale including a coupling methodology to meteorological modelling at mesoscale to obtain appropriate boundary conditions. We present the concept and implementation of this approach. Modelling results of the impact of trees in urban climate are presented in terms of wind flow patterns and air temperature difference. This paper convincingly proposes an avenue for fully-resolved modelling of the urban climate, a much required tool to propose and study valuable solutions for cities faced with climate change and increased frequency of heat waves.
Keywords: Urban scale, building-resolved, meteorological models, CFD
Pages: 1020 - 1025