Author(s)

S.T. Chan and R.L. Lee

Abstract

A three-dimensional, numerical model for simulating airflow and pollutant dispersion around buildings is described. The model is based on an innovative finite element approach and fully implicit time integration techniques. Linear and nonlinear eddy viscosity/diffusivity submodels are provided for turbulence parameterization. Model predictions for the flow-field and dispersion patterns around a surface-mounted cube are compared with measured data from laboratory experiments. 1 Introduction The prediction of atmospheric flow and pollutant dispersion in an urban area is difficult due to the presence of buildings and numerous surface-mounted obstacles. Indiv

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