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A multilayer model to simulate rocket exhaust clouds

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.

Keywords:
Alcântara Launch Center; Advection-diffusion equation; Atmospheric dispersion

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REFERENCES

  • Abate, J., Valkó, P.P., 2004, "Multi-precision Laplace transform inversion", International Journal for Numerical Methods in Engineering, Vol. 60, pp. 979-993. doi: 10.1002/nme.995
    » https://doi.org/10.1002/nme.995
  • Bianconi, R., Tamponi, M., 1993, "A mathematical model of diffusion from a steady source of short duration in a finite mixing layer", Atmospheric Environment, Vol. 27, No. 5, pp. 781-792. doi:10.1016/0960-1686(93)90196-6
    » https://doi.org/10.1016/0960-1686(93)90196-6
  • Bjorklund, J.R., Dumbauld, J.K, Cheney, C.S. and Geary, H.V., 1982, "User's manual for the REEDM (Rocket Exhaust Effluent Diffusion Model) compute program", NASA contractor report 3646. NASA George C. Marshall Space Flight Center, Huntsville, AL.
  • Bjorklund, J.R., 1990, "User instructions for the Real-Time Volume Source Dispersion Model (RTVSM)", H.E Cramer Company, Inc. Report TR-90-374-02, prepared for U.S. Army Dugway Proving Ground, Dugway, UT.
  • Bjorklund, J.R., Bowers, J.F., Dodd, G.C. and White, J.M., 1998, "Open Burn/Open Detonation Dispersion Model (OBODM) users' guide", Vol. 2, Technical description. West desert test center, US Army Dugway proving ground, Dugway, Utah.
  • Briggs, G.A., 1975, "Plume Rise Predictions, Lectures on Air Pollution and Environmental Impact Analyses", D.A. Haugen ed., American Meteorological Society, Boston, MA, pp. 59-111.
  • Degrazia, G.A., Campos Velho, H.F. and Carvalho, J.C., 1997, "Nonlocal exchange coefficients for the convective boundary layer derived from spectral properties", Contributions to Atmospheric Physics, Vol. 70, No. 1, pp. 57-64.
  • Degrazia, G.A., Mangia, C. and Rizza U. , 1998, "A comparison between different methods to estimate the lateral dispersion parameter under convective conditions", Journal of Applied Meteorology, Vol. 37, pp. 227-231.
  • Dumbauld, R.K., Bjorklund, J.R. and Bowers, J.F., 1973, "NASA/MSFC multilayer diffusion models and computer program for operational prediction of toxic fuel hazards", NASA Contractor Report CR-129006, NASA George C. Marshall Space Flight Center, Huntsville, AL.
  • EPA-454/B-03-002, 2004. User's Guide for the AERMOD meteorological preprocessor (AERMET).
  • Gryning, S., Holtslag, A., Irwing, J. and Silversten, B., 1987, "Applied dispersion modeling based on meteorological scaling parameters", Atmospheric Environment, Vol. 21, pp. 79-89.
  • Hanna, S.R., 1989, "Confidence limit for air quality models as estimated by bootstrap and jacknife resampling methods", Atmospheric Environment, Vol. 23, pp. 1385-1395.
  • Hφjstrup, J., 1982, "Velocity spectra in the unstable boundary layer", Journal of Atmospheric Science, Vol. 39, pp. 2239-2248.
  • Huang, C.H., 1979, "A theory of dispersion in turbulent shear flow", Atmospheric Environment, Vol. 13, pp. 453-461.
  • Mangia, C., Moreira, D.M., Schipa, I., Degrazia, G.A., Tirabassi, T. and Rizza, U., 2002, "Evaluation of a new eddy diffusivity parameterisation from turbulent Eulerian spectra in different stability conditions", Atmospheric Environment, Vol. 36, pp. 67-76.
  • Moreira, D.M., Degrazia, G.A. and Vilhena, M.T., 1999, "Dispersion from low sources in a convective boundary layer: an analytical model", Il Nuovo Cimento, Vol. 22C, n.5, pp. 685-691.
  • Moreira, D.M., Rizza, U., Vilhena, M.T. and Goulart, A.G., 2005a, "Semi-analytical model for pollution dispersion in the planetary boundary layer", Atmospheric Environment, Vol. 39, No. 14, pp. 2689-2697.
  • Moreira, D.M, Carvalho, J.C., Goulart, A.G. and Tirabassi, T., 2005b, "Simulation of the dispersion of pollutants using two approaches for the case of a low source in the SBL: evaluation of turbulence parameterisations", Water, Air and Soil Pollution, Vol. 161, pp. 285-297.
  • Moreira, D.M, Ferreira Neto, P.V. and Carvalho, J.C., 2005c, "Analytical solution of the Eulerian dispersion equation for nonstationary conditions: development and evaluation", Environmental Modelling and Software, Vol. 20, No. 9, pp. 1159-1165.
  • Moreira, D.M., Tirabassi, T. and Carvalho, J.C., 2005d, "Plume dispersion simulation in low wind conditions in stable and convective boundary layers", Atmospheric Environment, Vol. 39, No. 20, pp. 3643-3650.
  • Moreira, D.M, Vilhena, M.T., Tirabassi, T., Costa, C. and Bodmann, B., 2006, "Simulation of pollutant dispersion in the atmosphere by the Laplace transform: the ADMM approach", Water, Air and Soil Pollution, Vol. 177, pp. 411-439.
  • Moreira, D.M., Trindade, L., 2010, "Manual do Usuário do Modelo MSDEF (Modelo Simulador da Dispersão de Efluentes de Foguetes)", Versão 1.0/2010, Relatório Técnico, CTA/IAE/ACA. 70pp.
  • Nyman, R.L., 2009, "NASA Report: Evaluation of Taurus II Static Test Firing and Normal Launch Rocket Plume Emissions".
  • Stephens, J.B., Stewart, R.B., 1977, "Rocket exhaust effluent modeling for thopospheric air quality and environmental assessment", National Aeronautics and Space Administration - NASA Technical Report.
  • Stroud, A.H., Secrest, D., 1966, "Gaussian Quadrature Formulas", Englewood Cliffs, N.J., Prentice Hall, Inc.
  • Tirabassi, T., Rizza, U., 1997, "Boundary layer parameterization for a non-Gaussian puff model", Journal of Applied Meteorology, Vol. 36, pp. 1031-1037.

Publication Dates

  • Publication in this collection
    Jan-Apr 2011

History

  • Received
    11 Feb 2011
  • Accepted
    10 Mar 2011
Departamento de Ciência e Tecnologia Aeroespacial Instituto de Aeronáutica e Espaço. Praça Marechal do Ar Eduardo Gomes, 50. Vila das Acácias, CEP: 12 228-901, tel (55) 12 99162 5609 - São José dos Campos - SP - Brazil
E-mail: submission.jatm@gmail.com