Flow in urban environments is complicated by the presence of buildings, which divert the flow into often unexpected directions. Contaminants released at ground level
are easily lofted above tall (~ 100 m) buildings and channeled through urban canyons that are perpendicular to the wind direction (see e.g., IOP 9 in Chan, 2005). The path of wind and scalars in urban environments is difficult to predict even with building-resolving computational
fluid dynamics codes, due to the uncertainty in the synoptic
wind and boundary conditions and other errors in the models.
| Date Of Record Release | 2009-06-16 15:07:20 |
|---|---|
| Description | Flow in urban environments is complicated by the presence of buildings, which divert the flow into often unexpected directions. Contaminants released at ground level are easily lofted above tall (~ 100 m) buildings and channeled through urban canyons that are perpendicular to the wind direction (see e.g., IOP 9 in Chan, 2005). The path of wind and scalars in urban environments is difficult to predict even with building-resolving computational fluid dynamics codes, due to the uncertainty in the synoptic wind and boundary conditions and other errors in the models. |
| Classification | |
| Resource Type | |
| Format | |
| Subject | |
| Source | National Atmospheric Release Advisory Center |
| Keyword | Emergency response, Urban environments, Atmospheric releases, Wind, Fluid dynamics, Models |
| Selector | Stith |
| Date Of Record Creation | 2009-06-16 14:58:26 |
| Education Level | |
| Date Last Modified | 2009-06-16 15:07:20 |
| Creator | Fotini Katopodes Chow, Branko Kosovic, Stevens T. Chan |
| Language | English |
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