Non-visible flame; MILD combustion; Turbulence-chemistry interaction; Multi-environment PDF approach
Issue Date
2017-11
Publisher
한국연소학회
Citation
한국연소학회지, v. 22, no. 4, page. 43-50
Abstract
In this study, the multi-environment probability density function(MEPDF) approach has been applied to numerically investigate Delft-Jet-in-Hot-Coflow(DJHC) turbulent flames under Moderate or Intense Lowoxygen Dilution (MILD) combustion condition. Computations are made for two different jet velocities(Re = 4100 and 8800). In terms of mean axial velocity, temperature, and turbulent kinetic energy, numerical results are in reasonably good agreements with experimental data even if there exist the noticeable deviations in downstream region. Based on numerical results, the detailed discussions are made for the essential features of the non-visible flame structure and MILD combustion processes.