Novel framework models hydrogen–air combustion dynamics, indicating improved accuracy in turbulent conditions.
• Novel spatial filtering LES framework for turbulent premixed hydrogen–air combustion. • Systematic damping of unresolved high-frequency fluctuations of fast radical species. • Sub-grid micro-mixing model accounting for turbulence/thermochemical properties. • Accurate treatment of filtered chemistry using deconvolution. • Validated against DNS in vitiated hydrogen–air turbulent premixed flame.
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Béroudiaux et al. (2026) studied this question.
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