희박 예혼합 모델 가스터빈 연소기에서 스월유동 특성이 화염 간 상호작용에 미치는 영향Swirl Flow Effects on Flame-Flame Interactions in a Model Lean-Premixed Gas Turbine Combustor

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The effect of swirl flow structures on combustion dynamics of two interacting, lean-premixed flames was experimentally investigated, with a particular emphasis on swirl numbers and swirl rotational directions. Our results show that the amplitude of limit cycle oscillations is very sensitive to the combination of swirl numbers and rotational directions, while the instability frequency remains nearly unchanged. The counter-rotating cases show significantly lower pressure perturbations, and this behavior appears to be related to the formation of compact interacting zone with higher heat release rate, indicating the presence of increased flame surface wrinkling caused by intense turbulence.
Publisher
The Korean Society Of Combustion
Issue Date
2018-03
Language
Korean
Article Type
Article
Citation

JOURNAL OF THE KOREAN SOCIETY OF COMBUSTION, v.23, no.1, pp.21 - 27

ISSN
1226-0959
DOI
10.15231/jksc.2018.23.1.021
URI
http://hdl.handle.net/10203/241348
Appears in Collection
AE-Journal Papers(저널논문)
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