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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

Local flame structure and turbulent burning velocity by joint PLIF imaging

http://hdl.handle.net/2237/20034
http://hdl.handle.net/2237/20034
21b36488-8008-4648-9c5d-36660f544cd1
名前 / ファイル ライセンス アクション
92.pdf 92.pdf (783.9 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2014-05-23
タイトル
タイトル Local flame structure and turbulent burning velocity by joint PLIF imaging
言語 en
著者 Yamamoto, Kazuhiro

× Yamamoto, Kazuhiro

WEKO 52368

en Yamamoto, Kazuhiro

Search repository
Isii, Shinji

× Isii, Shinji

WEKO 52369

en Isii, Shinji

Search repository
Ohnishi, Masahiro

× Ohnishi, Masahiro

WEKO 52370

en Ohnishi, Masahiro

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 This is the author's version of a work that was accepted for publication in Proceedings of the Combustion Institute. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms, may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Proceedings of the Combustion Institute. v.33, n.1, 2011, p.1285–1292, DOI: http://dx.doi.org/10.1016/j.proci.2010.06.087
キーワード
主題Scheme Other
主題 Premixed combustion
キーワード
主題Scheme Other
主題 Turbulent burning velocity
キーワード
主題Scheme Other
主題 LIF
キーワード
主題Scheme Other
主題 Flame surface area
キーワード
主題Scheme Other
主題 Extinction
抄録
内容記述 In this study, we have examined local flame structure by joint PLIF imaging, using simultaneous HCHO/OH-PLIF and orthogonal OH-PLIF measurements. By considering the degree of flame wrinkling, three-dimensional flame surface area is obtained from 2D images. We have used a cyclone–jet combustor to establish turbulent premixed flames for propane/air mixtures in a wide range of turbulence, covering the flamelet regime and thin-reaction-zones regime on combustion diagram. Results show that as the mean velocity at the combustor exit is increased, more complex flame structure is observed with multiple flamelets. Near the global extinction, peak OH concentration in reaction zone becomes almost zero whereas HCHO concentration in preheat zone still remains. As a result, the large reduction of heat release rate occurs, resulting in local extinction. The turbulent burning velocity determined by the mean flame shape is increased with turbulence, and the bending effect is observed in thin-reaction-zones regime. On the other hand, different from the flame perimeter, the flame surface area is linearly increased. Since the turbulent burning velocity is well predicted by the classical formula in wrinkled flames, the bending is explained by the reduction of local burning velocity. Thus, within the frame work in our measurement, the flamelet approach could be still valid even in the thin-reaction-zones regime.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 Elsevier
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.proci.2010.06.087
ISSN
収録物識別子タイプ PISSN
収録物識別子 1540-7489
書誌情報 en : Proceedings of the Combustion Institute

巻 33, 号 1, p. 1285-1292, 発行日 2011
著者版フラグ
値 author
URI
識別子 http://dx.doi.org/10.1016/j.proci.2010.06.087
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/20034
識別子タイプ HDL
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