Hazardous gas dispersion: A CFD model accounting for atmospheric stability classes

Nowadays, thanks to the increasing CPU power the use of Computational Fluid Dynamics (CFD) is rapidly imposing also in the industrial risk assessment area, replacing integral models when particular situations, such as those involving complex terrains or large obstacles, are involved. Nevertheless, c...

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Bibliographic Details
Published in:Journal of hazardous materials 2009-11, Vol.171 (1), p.739-747
Main Authors: Pontiggia, M., Derudi, M., Busini, V., Rota, R.
Format: Article
Language:English
Subjects:
Accounting
Air Pollutants
Algorithms
Applied sciences
Atmosphere
Atmospheric stability
Atmospherics
CFD
Chemical engineering
Computational fluid dynamics
Computer Simulation
Dispersions
Environmental Monitoring - instrumentation
Environmental Monitoring - methods
Exact sciences and technology
Gas dispersion
Gases
Integrals
Mathematical models
Models, Statistical
Particle Size
Pollution
Risk assessment
Safety
Software
Turbulence modelling
Volatilization
Wind
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Summary:Nowadays, thanks to the increasing CPU power the use of Computational Fluid Dynamics (CFD) is rapidly imposing also in the industrial risk assessment area, replacing integral models when particular situations, such as those involving complex terrains or large obstacles, are involved. Nevertheless, commercial CFD codes usually do not provide specific turbulence model for simulating atmospheric stratification effects, which are accounted of by the integral models through the well-known stability-class approach. In this work, a new approach able to take account of atmospheric features in CFD simulations has been developed and validated by comparison with available experimental data.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2009.06.064