A Study on Structures and NOx Formation Characteristics in Coflow and Counterflow Diffusion Flamelet

분류 및 대향류 확산 소화염의 구조 및 NOx 생성특성 비교 검토

  • 오창보 (인하대학교 기계공학과 대학원) ;
  • 김종수 (인하대학교 기계공학과 대학원) ;
  • 이창언 (인하대학교 기계공학과) ;
  • 이기만 (전남 도립 담양대학교 기계공학과)
  • Published : 1998.12.31


Flame structures and NOx formation characteristics in the flame lets of coflow and counterflow diffusion flame are numerically studied. Calculations were carried out twice with the $C_2-Full$ and $C_2-Thermal$ Mechanism for each flame. Mixture fractions and scalar dissipation rates are used as the parameters to compare the flame let structures and NOx formation characteristics quantitatively. It was found that there is a similarity in flame temperature and stable species profiles except radical profiles between two flamelets. And there are some differences in NOx concentration and production rates. These results imply that the flow effects must be considered in calculations for NOx formation of turbulent flames using Laminar Flamelet Model.