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A multilayer model to simulate rocket exhaust clouds

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Author(s): Davidson Martins Moreira | Leonardo Barboza Trindade | Gilberto Fisch | Marcelo Romero de Moraes | Rodrigo Martins Dorado | Roberto Lage Guedes

Journal: Journal of Aerospace Technology and Management
ISSN 1984-9648

Volume: 3;
Issue: 1;
Start page: 41;
Date: 2011;
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Keywords: Alcântara Launch Center | Advection-diffusion equation | Atmospheric dispersion

ABSTRACT
This paper presents the MSDEF (Modelo Simulador da Dispersão de Efluentes de Foguetes, in Portuguese) model, which represents the solution for time-dependent advection-diffusion equation applying the Laplace transform considering the Atmospheric Boundary Layer as a multilayer system. This solution allows a time evolution description of the concentration field emitted from a source during a release lasting time tr , and it takes into account deposition velocity, first-order chemical reaction, gravitational settling, precipitation scavenging, and plume rise effect. This solution is suitable for describing critical events relative to accidental release of toxic, flammable, or explosive substances. A qualitative evaluation of the model to simulate rocket exhaust clouds is showed.
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