Evaluation of CFD model predictions of local dispersion from an area source on a complex industrial site. (8th February 2011)

• Record Type: Journal Article
• Authors: Hill, Richard; Arnott, Alistair; Hayden, Paul; Lawton, Tom; Robins, Alan; Parker, Tim
• Is Part Of: International journal of environment and pollution. Volume 44:Number 1-4(2011)
• Page Start: 173
• Page End: 181
• Publication Date: 2011-02-08
• Subjects: building effects -- CFD -- computational fluid dynamics -- complex sites -- wind tunnels -- dispersion modelling -- atmospheric transport -- flow modelling -- turbulence modelling -- meteorological measurements -- uncertainties -- air quality -- air pollution; Environmental policy -- Periodicals; Environmental engineering -- Periodicals; Environmental sciences -- Periodicals; Pollution -- Periodicals; 363.73
• Languages: English
• ISSNs: 0957-4352

Abstract

The CFD model Fluidyn-Panache was configured to model atmospheric transport from an area source. Modelled flow and turbulence were evaluated by comparison with on-site meteorological measurements, whilst atmospheric dispersion was compared with wind tunnel measurements. The results showed that higher rates of vertical and lateral dispersion were modelled than were determined in the wind tunnel, though modelled and measured ground-level centreline concentration data were within a factor of two. Uncertainties in wind tunnel and numerical modelling were highest close to the source. Consideration of fine-scale features was only necessary for receptors in the immediate near-field.