Turbulence/chemistry interaction

In simulations of various combustion systems, the interaction between the turbulence and the chemistry plays a major role in the quality of the predictions. Different models exist to couple chemistry and fluid mechanics, ranging from flamelet-based approaches to transported PDF ones.
In recent years, the Eddy Dissipation Concept (EDC) model has found wide application for the simulation of turbulent reacting flows, especially for cases where the combustion kinetics may play a major role. EDC has the advantage of incorporating detailed kinetics at a computational cost which is affordable when compared to more sophisticated models such as the transported PDF methods.


edc

Research at BURN is focused on the extension of the  EDC model to MILD conditions, by means of the generalization of the EDC model coefficients using the local Reynolds and Damköhler numbers. The modified model has been validated on well-known systems, such as the Adelaide jet-in-hot-coflow burner, showing great promise.

More details are available in the following publications:
[1] A. Parente, C. Galletti, L. Tognotti, International Journal of Hydrogen Energy 33 (2008) 7553 – 7564. link
[2] A. Parente, M. R. Malik, F. Contino, A. Cuoci, B. B. Dally, Fuel, under review.