군집 예혼합 수소 화염 동특성에 관한 LES 수치해석

Abstract

The present study investigates the response of clustered lean-premixed hydrogen flames to velocity disturbances using large eddy simulation (LES) with a detailed kinetic mechanism. Validation of the simulation is carried out by comparing the predicted results with experimental data, including OH* and OH PLIF flame visualizations, as well as pressure/velocity measurements, which show good agreement between the two. Furthermore, the study highlights the observation of flame tip opening phenomena in lean-premixed hydrogen flames, which have the potential to modify the flame response to acoustic forcing.