EXTERNAL PUBLICATIONS
HSE CRR 396/2001
A model for jet dispersion in a congested environment
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SUMMARY
Addresses the problem posed by the interaction of a gas jet when it encounters obstacles which when taken together can be construed as a congested environment. The aim of the project was to take an existing integral model normally applied to level, unobstructed terrain as a basis for modelling in more realistic situations. Semi-empirical methods were used to account for dilution effects and the new model applied to pre-existing data. The model is suitable for prediction of concentrations down to about 1% of the source concentration and would therefore not be suitable for toxic releases where there could still be significant harm at much lower concentrations.
This report and the work it describes were funded by the Health and Safety Executive (HSE). Its contents, including any opinions and/or conclusions expressed, are those of the author(s) alone and do not necessarily reflect HSE policy
