Evaluation of pedestrian winds around tall buildings by numerical approach

SummaryA numerical model based on the compressible flow equations has been used to simulate the pedestrian wind fields around the programming tall buildings in Beijing city. The model results are well agreed with those of the wind tunnel experiments. Since numerical model can provide the detailed flow field data at each grid point and each time step, it has a great advantage compared with the wind tunnel experiment in accurately evaluating the wind effects on pedestrian and other environmental issues. Furthermore, advance computational technology has made the numerical modeling become fast and cheaply. It is believed that the numerical simulation will play an increasingly more important role in the coming years, especially in dealing with wind environment.