Article ID Journal Published Year Pages File Type
10264690 Combustion and Flame 2012 17 Pages PDF
Abstract
Results from two and three-dimensional DNS of turbulent premixed methane-air combustion show that mixing rates and conditional statistics of species mass fractions depend on species diffusivities and the combustion regime. Zero-dimensional PDF model results obtained for the two-dimensional DNS case show that the EMST-DD model best reproduces the features that characterize differential diffusion in the DNS. The essential feature of the EMST-DD model, which accounts for its success in turbulent premixed combustion, is that differential mixing rates are imposed within a model which mixes locally in composition space.
Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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