Publications Details
Large Eddy Simulation of complex thermophysics in advanced propulsion and power systems
Progress toward application of the Large Eddy Simulation (LES) technique to turbulent multiphase combustion processes typically encountered in advanced propulsion and power systems is presented. The objective is to provide a systematic analysis of current findings and assist in the development of technical performance metrics for model development and validation. Research is currently required to provide both improved multiphase combustion models and improved datasets for validation. Requirements for further model development must be established through detailed analyses of the space-time characteristics of small-scale flame structures and turbulence-chemistry interactions. Concurrently, a refined set of implementation requirements must be established for LES. Steps taken towards these goals are described in the context of a generalized formulation of the filtered conservation equations using an arbitrary filter function that operates on both spatial and temporal scales. Case studies are presented that demonstrate current findings in the treatment of complex thermophysical processes typically present in advanced systems followed by discussion to add perspective on future needs.