한국연소학회:학술대회논문집

The Korean Society of Combustion (한국연소학회)
권호 표지

A Numerical Study on the Dynamic Behaviors of Single Vortex in a $CH_4/Air$ Diffusion Flame with Addition of $CO_2$

$CH_4/Air$ 확산화염에 $CO_2$ 첨가에 따른 단일 와동의 동적 거동에 관한 수치해석

  • 황철홍 (인하대학교 대학원 기계공학과) ;
  • 오창보 (인하대학교 대학원 기계공학과) ;
  • 이대엽 (인하대학교 기계공학과) ;
  • 이창언 (인하대학교 기계공학과)
  • Published : 2002.06.07
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Abstract

The dynamic behaviors of the single vortex and flame-vortex interaction in a $CH_4/Air$ diffusion flame with addition of $CO_2$ were investigated numerically. The numerical method was based on a predictor-corrector for low Mach number flow. A two-step global reaction mechanism was adopted as a combustion model. Through comparison of results by effect of $CO_2$ added either on the fuel or oxidizer side, it was found that the growth of single vortex and entrainment of surrounding fluid by $CO_2$addition on the fuel side are larger than those by $CO_2$ addition on oxidizer side. Also, when $CO_2$ is added on fuel side, flame-vortex interaction becomes more significant than on air side.

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