Novel Mesh Adaptive LES Simulations for Multi-Scale Atmospheric Flows: Application to the Urban Environment

摘要

Effective air quality management necessitates the implementation and validation of multi-scale models that are able to capture adequate spatial and temporal vari-ability of urban pollution dispersion patterns. A new LES approach is implemented in a general purpose CFD model (Fluidity) with anisotropic mesh adaptivity for simulating turbulent airflows within complex urban environments. The model is compared to field and wind tunnel data considering a passive tracer dispersion scenario.