Ignition sequence of an annular multi-injector combustor

Ignition is a critical process in combustion systems. In aeronautical combustors, altitude relight capacities are required in case of accidental extinction of the chamber. A simultaneous study of light-round ignition in an annular multi-injector combustor has been performed on the experimental and numerical sides. This eort allows a unique comparison to assess the reliability of Large-Eddy Simulation (LES) in such a conguration. Results are presented in uid dynamics videos.