Modeling soot filter regeneration process through surface-reactive flow in porous media using iterative lattice Boltzmann method

R. Alamian, M. Sawaf, C. Stockinger, A. Hadjadj, J. Latt and M.S. Shadloo

Energy, 2024, vol. 289, issue C

Abstract: In this research, we utilized the Lattice Boltzmann Method (LBM) to model surface chemical reactions and the heat transfer occurring between gas and solid materials within porous media. Our comprehensive approach involved a detailed analysis of fluid flow dynamics, heat transfer mechanisms, and the complex behavior of reactive species. To ensure precise modeling, we employed the thermal counter-slip method to represent heat transfer and carefully chose the wet node scheme to manage surface chemical reactions and species transfer. We placed significant emphasis on methodically explaining our selected models and providing practical guidelines for their implementation, as well as establishing initial and boundary conditions. An essential part of our study was investigating the influence of specific physical parameters governing these processes, including the Péclet, Damköhler, and Prandtl numbers. Consequently, we successfully identified various combustion regimes and elucidated the roles played by chemical reaction rates, diffusion, and convection processes within each of these regimes.

Keywords: Lattice-Boltzmann method; Porous media; Conjugate heat transfer; Combustion; Heterogeneous reaction (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:289:y:2024:i:c:s0360544223033741

DOI: 10.1016/j.energy.2023.129980

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