TITLE : EXHAUST DISPERSION NEAR A TOWER BLOCK

DETAILS :

• This is an example of modelling urban pollution. The wind flows around a 31-storey tower block with a low rise block on the other side of the street.

• The source of pollution comes from the vehicular exhaust. The road passes between two residential blocks.

• Although FLAIR does not have capability of automatically setting wind profile, this example shows that the same effect can be achieved by defining several 'fans' with height-dependent inflow.

Pictures are as follows :

1. Geometry of the problem
2. Pressure distribution.
3. Pollutant distribution.
4. Velocity vectors

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