Results from a highly resolved simulation are presented for a turbulent lean premixed
methane-air bluff-body burner investigated experimentally at Cambridge University and
Sandia National Laboratories. The Cartesian computational grid consists of 1.6 billion cells
with a resolution of 100 μ m, which is sufficient to capture the laminar (thermal) flame
thickness of 500 μ m. The combustion process is modeled with premixed flamelet generated
manifolds (PFGM). The quality of the simulation is assessed by investigating the resolution …

Dynamic sub-filter closures for artificially thickened flame (ATF) combustion models for large
eddy simulation (LES) are investigated with consistent a-priori and a-posteriori analyses.
The analyses are based on a flame resolved simulation (quasi DNS) and large eddy
simulations of the bluff body burner experiment by Hochgreb and Barlow with premixed
flamelet generated manifolds (PFGM). Both flame resolved simulation and LES are
performed under the conditions of a single real flame experiment, using the same domain …