Modelling Techniques for Flow and Dispersion Characteristics Predictions in Urban Areas

P011 Modelling Techniques for Flow and Dispersion Characteristics Prediction in Urban Areas Abstract 1 In this paper we present some numerical modelling techniques devoted to the prediction of flow and dispersion characteristics in urban areas at three different spatial scales. These are: the city scale the neighbourhood scale and the street (canyon) scale. Particular attention is given to the treatment of flow and temperature distribution within the urban area. Both a simple integral model and more complex Computational Fluid Dynamics (CFD) model are used. It is shown that the first model is suitable for the prediction of urban heat fluxes