한국연소학회:학술대회논문집

The Korean Society of Combustion (한국연소학회)
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Analysis of the Flame Dynamic Characteristics in the ducted Combustor with Bluff Body

보염기가 존재하는 덕트형 연소기에서 화염의 동적 특성에 관한 연구

  • 정찬영 (서울대학교 기계항공공학부 대학원) ;
  • 김태성 (서울대학교 기계항공공학부 대학원) ;
  • 송진관 (신시내티대학교 항공우주시스템학부) ;
  • 윤영빈 (서울대학교 기계항공공학부 및 IAAT)
  • Published : 2012.11.30
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Abstract

The characteristics of flame dynamics occurring near bluff body was experimentally investigated in a model combustor with V-gutter bluff body. Flashback occurs due to the change of pressure gradient in the combustor, and flashback distance depends on equivalent ratio. Unstable flames can be classified into three types depending on the flashback distance and structure. Re-stabilization takes place as the flame moves downstream. This process is supported by a strong vortex structure behind bluff body.

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