Open access
Date
2021-10-18Type
- Journal Article
Abstract
A new lattice Boltzmann model for reactive ideal gas mixtures is presented. The model is an extension to reactive flows of the recently proposed multi-component lattice Boltzmann model for compressible ideal gas mixtures with Stefan-Maxwell diffusion for species interaction. First, the kinetic model for the Stefan-Maxwell diffusion is enhanced to accommodate a source term accounting for the change in the mixture composition due to chemical reaction. Second, by including the heat of formation in the energy equation, the thermodynamic consistency of the underlying compressible lattice Boltzmann model for momentum and energy allows a realization of the energy and temperature change due to chemical reactions. This obviates the need for ad-hoc modelling with source terms for temperature or heat. Both parts remain consistently coupled through mixture composition, momentum, pressure, energy and enthalpy. The proposed model uses the standard three-dimensional lattices and is validated with a set of benchmarks including laminar burning speed in the hydrogen-air mixture and circular expanding premixed flame. This article is part of the theme issue 'Progress in mesoscale methods for fluid dynamics simulation'. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000505641Publication status
publishedExternal links
Journal / series
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering SciencesVolume
Pages / Article No.
Publisher
Royal SocietySubject
reactive lattice Boltzmann; Stefan-Maxwell diffusion; multicomponent lattice Boltzmann; circular expanding flame; detailed chemistry lattice Boltzmann; lattice Boltzmann hydrogen airFunding
834763 - Particles-on-Demand for Multiscale Fluid Dynamics (EC)
Related publications and datasets
Is cited by: https://doi.org/10.3929/ethz-b-000607045
Is part of: https://doi.org/10.3929/ethz-b-000547521
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