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Numerical Study on NOx Production of Transitional Fuel Jet Diffusion Flame
http://hdl.handle.net/2237/8999
http://hdl.handle.net/2237/89990f7c7fb4-4228-43fa-86f9-137200de3d08
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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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 |
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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 |
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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 |