Abstract
In order to develop accurate turbulent combustion models, a better understanding of the processes at work in turbulent flames must be obtained. This can be reached thanks to detailed experimental measurements, which are quite difficult and costly, or through accurate numerical simulations, mainly Direct Numerical Simulations (DNS). Quite a lot of work has been devoted to the case of premixed combustion, but much remains to be done. Moreover, non-premixed systems are used in many industrial applications, e.g. in Diesel engines or in industrial burners, and it seems appropriate to study in detail turbulent non-premixed reacting flows. We describe in this paper results of Direct Numerical Simulations of turbulent non-premixed flames using detailed chemistry and transport models, which are needed when the complexity of the chemistry must be taken into account, as for example in the case of pollutant formation. A wealth of raw information is obtained by these simulations. In order to extract the useful part of it, a powerful post-processing tool has been developed recently, and we will show examples of its possibilities for the case of turbulent hydrogen-air flames.
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Thévenin, D., Baron, R. (1999). Investigation of Turbulent Non-Premixed Flames Using Direct Simulations with Detailed Chemistry. In: Voke, P.R., Sandham, N.D., Kleiser, L. (eds) Direct and Large-Eddy Simulation III. ERCOFTAC Series, vol 7. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-9285-7_27
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DOI: https://doi.org/10.1007/978-94-015-9285-7_27
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