The thesis draws out a computational methodology for modelling the ignition behavior of biogas and other methane based fuels in non-premixed systems, to be extended to avenues such as recirculation to aid in the development of MILD burners for biogas-like fuels of future.

The thesis presents an extensive numerical modeling study on igniting non-premixed systems of combustion, with emphasis on biogas combustion. The scope of the research covers three main steps, starting with 1D modeling studies of igniting non-premixed flames using detailed chemistry (GRI), a generic method to formulate a reaction progress variable for the application in FGM, and finally LES

modeling of turbulent Jet in Hot Coflow (JHC) systems using FGM.

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