Comparison of Four Thermo-Mechanical Models for Simulating Reactive Flow in Porous Materials
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.
Andreas Öchsner, Graeme E. Murch, Ali Shokuhfar and João M.P.Q. Delgado
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