Comparison of Four Thermo-Mechanical Models for Simulating Reactive Flow in Porous Materials

Abstract:

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The objective of this paper is to present numerical simulations of combustion of an air/methane mixture in porous materials using a model that considers the intra-pore levels of turbulent kinetic energy. 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. Four 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. Preliminary testing results indicate that a substantially different temperature distribution is obtained depending on the model used. In addition, for high excess air peak gas temperature are reduced.

Info:

Periodical:

Defect and Diffusion Forum (Volumes 297-301)

Edited by:

Andreas Öchsner, Graeme E. Murch, Ali Shokuhfar and João M.P.Q. Delgado

Pages:

1493-1501

DOI:

10.4028/www.scientific.net/DDF.297-301.1493

Citation:

M. J.S. de Lemos and M. S. Mesquita, "Comparison of Four Thermo-Mechanical Models for Simulating Reactive Flow in Porous Materials", Defect and Diffusion Forum, Vols. 297-301, pp. 1493-1501, 2010

Online since:

April 2010

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$35.00

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