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Simulation of Turbulent Combustion in Inert Porous Media Using a Thermal Non-Equilibrium Model

[+] Author Affiliations
Marcelo J. S. de Lemos

Instituto Tecnológico de Aeronáutica - ITA, São José dos Campos, SP, Brazil

Paper No. IMECE2009-11635, pp. 107-113; 7 pages
doi:10.1115/IMECE2009-11635
From:
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 3: Combustion Science and Engineering
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4376-5 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME

abstract

The objective of this paper is to show numerical simulations of combustion of an air/methane mixture in porous materials. Here, a model that considers the intrapore levels of turbulent kinetic energy is used. Transport equations are written in their time-and-volume-averaged form and a volume-based statistical turbulence model is applied to simulate turbulence generation due to the porous matrix. Different thermo-mechanical models are compared, namely Laminar, Laminar with Radiation Transport, Turbulent, Turbulent with Radiation Transport. Combustion is modeled via a unique simple closure. Results indicate that a substantially different temperature distribution is obtained depending on the model used. In addition, for high excess air, peak gas temperatures are reduced.

Copyright © 2009 by ASME

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