Abstract
Lagrangian conditional moment closure(CMC) is applied to large eddy simulation(LES) to analyze turbulent piloted nonpremixed flame(Sandia flame D). It is assumed that the sequentially injected fuel groups share the conditional flame statistics. Coupling between turbulence and chemistry is considered in modeling of the conditional scalar dissipation rate(SDR) which is composed of resolved and subgrid scale modeled terms. Since no additional grid system is required for Lagrangian CMC, LES study is possible without large computation burden. The LES-Lagrangian CMC predicts the major scalar variables(temperature, mixture fraction, and mass fractions of CO, OH, H₂) consistent with measurements both in physical and mixture fraction spaces.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have