This paper presents the results of CFD simulations of the wind flow around group of buildings in an existing housing estate. Special attention has been paid on wind effects on pedestrians comfort at 1.80 m from the ground. Numerical simulation of wind flow has shown some zones in which wind comfort can be disturbed. In order to improve wind condition around buildings a windscreen has been proposed. Three types of wind screens have been considered: earth berm, acoustic screen and row of trees. The effect of windscreen on the wind flow patterns has been investigated for eight directions of wind. Calculations have been made with the use of Fluent CFD code. Numerical simulation has been based on the turbulence viscosity model k-ε and wall function. A practical, but reasonably fine numerical, unstructured mesh was employed, containing approximately 2 million tetrahedral elements.
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