THMT-12. Proceedings of the Seventh International Symposium On Turbulence Heat and Mass Transfer
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal
ISBN Print: 978-1-56700-302-4
ISSN: 2377-2816
Capturing transients in turbulent flows over complex urban areas with passive or reactive scalars
pages 260-263
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.290
摘要
The present study address numerical modelling and simulations of flow, turbulence and dispersion of a passive or reactive pollutants within and over complex urban areas including the laboratory-scale and full-scale applications. The special attention is devoted to capture transient flow features by introducing a seamless hybrid RANS/LES approach. This proved to be crucial in improving predictions of characteristic peaks of the turbulent kinetic energy in the wake regions, and consequently on overall improvement in predictions of the concentration field.