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A multilayer model to simulate rocket exhaust clouds

2011; Aerospace Technology and Science Department; Volume: 3; Issue: 1 Linguagem: Inglês

10.5028/jatm.2011.03010311

2175-9146

Davidson Martins Moreira, Leonardo Barboza Trindade, Gilberto Fisch, Marcelo Romero de Moraes, Rodrigo Martins Dorado, Roberto Lage Guedes,

Risk and Safety Analysis

This paper presents the MSDEF (Modelo Simulador da Dispersao 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 t r , 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.