DC Field | Value | Language |
---|---|---|
dc.contributor.author | 조주형 | ko |
dc.contributor.author | 백승욱 | ko |
dc.date.accessioned | 2009-09-09T08:05:52Z | - |
dc.date.available | 2009-09-09T08:05:52Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2008-06 | - |
dc.identifier.citation | 대한기계학회논문집 B, v.32, no.6, pp.413 - 420 | - |
dc.identifier.issn | 1226-4881 | - |
dc.identifier.uri | http://hdl.handle.net/10203/11116 | - |
dc.description.abstract | The unsteady heat release characteristics play a significant role in combustion instabilities observed in low emissions gas turbine combustors. Such combustion instabilities are often caused by coupling mechanisms between unsteady heat release rates and acoustic perturbations. A generalized model of the turbulent flame response to acoustic perturbations is analytically formulated by considering a distributed heat release along a curved mean flame front and using the flames kinematic model that incorporates the turbulent flame development. The effects of the development of flame speed on the flame transfer functions are examined by calculating the transfer functions with a constant or developing flame speed. The flame transfer function due to velocity fluctuation shows that, when a developing flame speed is used, the transfer function magnitude decreases faster with Strouhal number than the results with a constant flame speed at low Strouhal numbers. The flame transfer function due to mixture ratio fluctuation, however, exhibits the opposite results: the transfer function magnitude with a developing flame speed increases faster than that with a constant flame speed at low Strouhal numbers. Oscillatory behaviors of both transfer function magnitudes are shown to be damped when a developing flame speed is used. Both transfer functions also show similar behaviors in the phase characteristics: The phases of both transfer functions with a developing flame speed increase more rapidly than those with a constant flame speed. | - |
dc.description.sponsorship | 이 연구는 산업자원부 지원의 “미래형 자동차 배기가스 제로화 기술개발” 과제의 일부로 수행 되었으며 연구비 지원에 감사드립니다. | en |
dc.language | Korean | - |
dc.language.iso | ko | en |
dc.publisher | 대한기계학회 | - |
dc.title | 유동 섭동에 의한 난류예혼합화염의 열발생 모델에 관한 연구 | - |
dc.title.alternative | A Heat Release Model of Turbulent Premixed Flame Response to Acoustic Perturbations | - |
dc.type | Article | - |
dc.subject.alternative | Heat Release Model | en |
dc.subject.alternative | Turbulent Premixed Flame | en |
dc.subject.alternative | Combustion Instabilities | en |
dc.subject.alternative | Flame Transfer Function | en |
dc.type.rims | ART | - |
dc.citation.volume | 32 | - |
dc.citation.issue | 6 | - |
dc.citation.beginningpage | 413 | - |
dc.citation.endingpage | 420 | - |
dc.citation.publicationname | 대한기계학회논문집 B | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.identifier.kciid | ART001253727 | - |
dc.contributor.localauthor | 백승욱 | - |
dc.contributor.nonIdAuthor | 조주형 | - |
dc.subject.keywordAuthor | Heat Release Model(열발생모델) | - |
dc.subject.keywordAuthor | Turbulent Premixed Flame(난류예혼합화염) | - |
dc.subject.keywordAuthor | Combustion Instabilities(연소불안정) | - |
dc.subject.keywordAuthor | Flame Transfer Function(화염전달함수) | - |
dc.subject.keywordAuthor | Heat Release Model(열발생모델) | - |
dc.subject.keywordAuthor | Turbulent Premixed Flame(난류예혼합화염) | - |
dc.subject.keywordAuthor | Combustion Instabilities(연소불안정) | - |
dc.subject.keywordAuthor | Flame Transfer Function(화염전달함수) | - |
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