Abstract
In this research, a Large Eddy Simulation (LES) of hydrogen jet non-premixed flame was carried out and a prediction method for nitric oxide (NO) applicable to LES was proposed. Combustion model in LES is based on conserved scalar approach and laminar flamelet model. In NO prediction method, NO source term is calculated using temperature and species concentration predicted by LES and the transport of mass fraction of NO is calculated as a passive scalar, which does not affect flow field. Computed results were found in overall agreement with experimental data in velocity and temperature field. The trend of distribution of NO concentration was predicted reasonably by using this method, however the amount was underestimated.
