Tools for Simulating Turbulent Premixed Laboratory-Scale Flames

Marc Day, LBNL

In this talk, I will discuss an approach to reacting flow simulations that has enabled us to compute the detailed evolution of laboratory-scale turbulent premixed flames. In these simulations, we include detailed chemical kinetics and differential species transport, and use no explicit models for subgrid turbulence or turbulent/flame interations. I will focus on our progress in applying this methodology to a range of laboratory-scale experiments, both in terms of simulating real flames, and in the study of idealized flames that incorporate all the length and time scales of the experiment, but without the complexity associated with specifying real time-dependent detailed boundary conditions. In the companion paper to this talk, we additionally discuss novel data analysis techniques necessary to interpret the large and complex reacting flow data sets resulting from our simulations, from both an experimental and theoretical point of view. I hope to demonstrate that simulation can now become much more entwined in the scientific discovery process, can play a new role in the interpretation of experimental diagnostics, and can provide valuable data for the development of advanced theoretical combustion models.