Modeling blast waves, gas and particles dispersion in urban and hilly ground areas
| Autor: | Richard Saurel, O. Le Métayer, Emmanuel Lapebie, S. Hank |
|---|---|
| Přispěvatelé: | Institut universitaire des systèmes thermiques industriels (IUSTI), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Recherche Scientifique et Simulation Numérique [Roquevaire] (RS2N), GRAMAT (DAM/GRAMAT), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Engineering
Environmental Engineering Health Toxicology and Mutagenesis Poison control Explosions 01 natural sciences Compressible flow 010305 fluids & plasmas 11. Sustainability 0103 physical sciences Environmental Chemistry 0101 mathematics Cities Dispersion (water waves) Waste Management and Disposal Blast wave Simulation [PHYS]Physics [physics] Computer simulation business.industry Multiphase flow Mechanics Models Theoretical Pollution Shock (mechanics) 010101 applied mathematics Particulate Matter Two-phase flow Gases business |
| Zdroj: | Journal of Hazardous Materials Journal of Hazardous Materials, 2014, 280, pp.436-449. ⟨10.1016/j.jhazmat.2014.08.011⟩ Journal of Hazardous Materials, Elsevier, 2014, 280, pp.436-449. ⟨10.1016/j.jhazmat.2014.08.011⟩ |
| ISSN: | 0304-3894 1873-3336 |
| DOI: | 10.1016/j.jhazmat.2014.08.011⟩ |
| Popis: | International audience; The numerical simulation of shock and blast waves as well as particles dispersion in highly heterogeneous media such as cities, urban places, industrial plants and part of countries is addressed. Examples of phenomena under study are chemical gas products dispersion from damaged vessels, gas dispersion in urban places under explosion conditions, shock wave propagation in urban environment. A three-dimensional simulation multiphase flow code (HI2LO) is developed in this aim. To simplify the consideration of complex geometries, a heterogeneous discrete formulation is developed. When dealing with large scale domains, such as countries, the topography is considered with the help of elevation data. Meteorological conditions are also considered, in particular regarding complex temperature and wind profiles. Heat and mass transfers on sub-scale objects, such as buildings, trees and other obstacles are considered as well. Particles motion is addressed through a new turbulence model involving a single parameter to describe accurately plumes. Validations against experiments in basic situations are presented as well as examples of industrial and environmental computations. (C) 2014 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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