CERC — Environmental Software and Services
- Overview
- Air pollution modelling
- ADMS 4
- ADMS-Urban
- ADMS-Roads (Extra)
- ADMS-Airport
- ADMS-Screen
- Accidental releases
- GASTAR
- ADMSSTAR
- ADMS-Fire
- LSMS
- Emissions management
- EMIT
- Flow over complex terrain
- FLOWSTAR
- Other information
- Prices
- Visualisation tools
- System requirements
- Model documentation
ADMS-Screen
Advanced screening tool for industrial emissions
Model options
Buildings[top]
The dispersion of air pollution around buildings is complicated to model. The building effects module in ADMS-Screen is a reduced version of that of ADMS 4 to that extent it only models one building instead of many. It includes the following features.
One building can be included in each model run. For each wind direction, a single effective wind-aligned building is defined, around which the flow is modelled.
The flow field consists of a recirculating region (or cavity), with a diminishing turbulent wake downstream.
Concentrations within the cavity, CR, are uniform, and based on the fraction of the release that is entrained. The concentration at a point further downwind is the sum of contributions from two plumes: a ground-based plume from the recirculating flow region and an elevated plume from the non-entrained remainder. The concentration and deposition are set to zero within the user-defined building.