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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

Numerical Study on NOx Production of Transitional Fuel Jet Diffusion Flame

http://hdl.handle.net/2237/8999
http://hdl.handle.net/2237/8999
0f7c7fb4-4228-43fa-86f9-137200de3d08
名前 / ファイル ライセンス アクション
JsMecEngB_43-1-97.pdf JsMecEngB_43-1-97.pdf (861.1 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2007-11-09
タイトル
タイトル Numerical Study on NOx Production of Transitional Fuel Jet Diffusion Flame
言語 en
著者 YAMASHITA, Hiroshi

× YAMASHITA, Hiroshi

WEKO 20163

en YAMASHITA, Hiroshi

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 ja
権利情報 日本機械学会
権利
言語 ja
権利情報 本文データは学協会の許諾に基づきCiNiiから複製したものである。
キーワード
主題Scheme Other
主題 Diffusion Combustion
キーワード
主題Scheme Other
主題 Jet
キーワード
主題Scheme Other
主題 Pollutant
キーワード
主題Scheme Other
主題 Kinetics
キーワード
主題Scheme Other
主題 Numerical Analysis
キーワード
主題Scheme Other
主題 CH4
キーワード
主題Scheme Other
主題 Unsteady Behavior
キーワード
主題Scheme Other
主題 NOx
抄録
内容記述 A direct numerical simulation of a two-dimensional jet diffusion flame developed in a co-flowing air stream was carried out using the GRI [Gas Research Institute] chemical reaction mechanism (NOx included) in order to elucidate the mechanism of NOx formation in turbulent flow fields. The governing equations were discretized and numerically integrated using the finite volume method. The temperature dependence of thermodynamical properties was taken into account; transport properties were calculated according to the simplified transport model proposed by Smooke [Reduced Kinetic Mechanisms and Asymptotic Approximations for Methane-Air Flames, (1991), p.1-28, Springer-Verlag]. Fuel jet velocity was found to have tha same effects on the flame structure and the unsteady behavior as those concluded from the flame sheet approach ; by increasing the fuel jet velocity, the flow becomes turbulent with large fluctuations downstream, and the flame is disturbed by the enlarged fluctuations in the turbulent region downstream where local extinction takes place. From a comparison with the laminar counterflow diffusion flame, it was concluded that the hypothesis of the laminar flamelet model that “the instantaneous local structure of the turbulent flow field can be accurately simulated by the laminar diffusion flame", can be applied to the unsteady turbulent jet flame that includes the possibility of extinction and takes into account the NOx formation process. As a result, it was verified that the formation of NOx in the turbulent flow field has the same mechanism as that in the unsteady laminar diffusion flame even for the case of extinction.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 The Japan Society of Mechanical Engineers
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 VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
関連情報
関連タイプ isVersionOf
識別子タイプ URI
関連識別子 http://ci.nii.ac.jp/naid/110003474321/
ISSN
収録物識別子タイプ PISSN
収録物識別子 1340-8054
書誌情報 en : JSME International Journal Series B

巻 43, 号 1, p. 97-103, 発行日 2000
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/8999
識別子タイプ HDL
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