한국연소학회지 (Journal of the Korean Society of Combustion)

  • 제14권1호
  • /
  • Pages.1-8
  • /
  • 2009
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  • 1226-0959(pISSN)
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  • 2466-2089(eISSN)
한국연소학회 (The Korean Society of Combustion)
권호 표지

진동하는 층류부상화염에서 화염곡률 효과에 관한 연구

A Study on Effects of Flame Curvature in Oscillatory Laminar Lifted-flames

  • 윤성환 (부경대학교 기계공학) ;
  • 박정 (부경대학교 기계공학부) ;
  • 권오붕 (부경대학교 기계공학) ;
  • 윤진한 (한국기계연구원 그린환경기계연구본부) ;
  • 길상인 (한국기계연구원 그린환경기계연구본부)
  • 발행 : 2009.03.31
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초록

Experiment is conducted to grasp effects of flame curvature on flame behavior in laminar lifted-jet flames. Nozzle diameters of 0.1 and 1.0mm are used to vary flame curvature of edge flame. There exist three types of edge flame oscillation. These edge flame oscillations may be caused by radial heat loss at all flame conditions, by fuel Lewis numbers near or larger than unity with the help of appreciable radial conduction heat loss, and by buoyancy effects. These are confirmed by the analysis of oscillation frequencies. It is however seen that the change of lift-off height through edge-flame oscillation is mainly due to radial heat loss irrespective of Lewis number and buoyancy.

키워드

참고문헌

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