High Fuel-to-Air Ratio (FAR) Development Tool

The objective of this proposal is to develop a simulation tool capable of accurate predictions of the complex mixing process in gas turbine engine combustors, applicable to complex geometry, multi-physics problems, and combustion in lean and high FAR regions. Because of the importance of the mixing process, the simulation tool will be based on the large-eddy simulation technique. The code will be based on our unstructured LES code CDP, which is a highly specialized and optimized for LES and uses appropriate LES filters and numerical methods. A state-of-the-art combustion model using detailed chemical kinetics for JP-8 fuel will be developed and employed to describe turbulence/chemistry interactions. It is also proposed here to use the simulation tool to gain a better understanding of the interaction of combustion and the mixing process and to enable better control of the burnout of high FAR regions.