Poster 5 Inter-comparison of CFD, wind tunnel and Gaussian plume models for estimating dispersion from a complex industrial site

Abstract The British Nuclear Group's Sellafield site extends over 2 km 2 and includes over 100 buildings of varying dimensions and extending to heights of up to 60 m. Authorised atmospheric releases of radioactivity arise from fugitive emissions from open fuel-storage ponds and stack releases ranging between 20 and 125 m in height. The aim of this study was to compare dispersion predictions from wind tunnel, CFD and advanced Gaussian plume models for six release points of varying height located on the Sellafield site.