Abstract
In this paper, we propose a method of three-dimensional direct numerical simulation of turbulent flame propagation in gas-reacting mixtures under stationary, homogeneous, and isotropic turbulence conditions. This method is based on the detailed kinetic mechanism of combustion of a multicomponent mixture, does not contain any adjustable parameters, and is applied to the calculation of turbulent combustion of fuel-lean hydrogen–air mixtures. The calculated propagation speeds of the turbulent flame are in satisfactory agreement with the measured values. The calculated concentrations of the reaction active centers, such as OH, H, and O, in a turbulent flame are lower than those in a laminar flame, which also agrees with the experimental results.
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