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Numerical Investigation of Edge Flame Structure of Counterflow Nonpremixed Flames with Local Extinction Due to Flame Stretch
https://repo.lib.tut.ac.jp/records/1134
https://repo.lib.tut.ac.jp/records/1134b6a9bb58-5f68-427d-a96c-66c14e392bbd
| 名前 / ファイル | ライセンス | アクション |
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j13408054-0048-849 (846.5 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
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| 公開日 | 2013-02-21 | |||||||||
| タイトル | ||||||||||
| タイトル | Numerical Investigation of Edge Flame Structure of Counterflow Nonpremixed Flames with Local Extinction Due to Flame Stretch | |||||||||
| タイトル | ||||||||||
| タイトル | Numerical Investigation of Edge Flame Structure of Counterflow Nonpremixed Flames with Local Extinction Due to Flame Stretch | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ | journal article | |||||||||
| 著者 |
NODA, Susumu
× NODA, Susumu
× TSUBOKURA, Tomonori
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| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Laminar counterflow nonpremixed flames with local extinction caused by nonuniform inflows are numerically investigated in two-dimensions in a system governed by Lewis numbers of unity and assuming a single-step, irreversible, finite-rate reaction. A numerical method based on the SIMPLE algorithm is used. Edge flame structures are investigated through the introduction of a new progress variable defined as the normalized integral of the mass fraction of a product in the mixture fraction Z space and which expresses the progress of the chemical reaction. Calculation results reveal that the edge flame structure can be classified into three regions; fully burning flame, weakened flame with a low reaction rate, and a non-reacting preheat region. Under these conditions, and in terms of the energy balance, the edge flame structure is dependent on the Z-directional heat diffusion transport, heat consumption (given by the progress variable), and heat production by chemical reaction. It is found that each type of flame structure can be well characterized by three parameters; the mixture fraction, the stoichiometric scalar dissipation rate, and the progress variable. These three parameters are identified as important factors affecting the edge flame structure of nonpremixed flames with local extinction. | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | ・rights：日本機械学会 ・rights：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 ・relation：isVersionOf：http://ci.nii.ac.jp/naid/110004820255/ |
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| 書誌情報 |
JSME international journal. Ser. B, Fluids and thermal engineering en : JSME international journal. Ser. B, Fluids and thermal engineering 巻 48, 号 4, p. 849-857, 発行日 2005-11-15 |
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| 出版者 | ||||||||||
| 出版者 | 一般社団法人日本機械学会 | |||||||||
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| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 13408054 | |||||||||
| 関連サイト | ||||||||||
| 識別子タイプ | URI | |||||||||
| 関連識別子 | http://ci.nii.ac.jp/naid/110004820255/ | |||||||||
| 関連名称 | CiNii | |||||||||
| 著者版フラグ | ||||||||||
| 出版タイプ | VoR | |||||||||
| キーワード | ||||||||||
| 主題 | Combustion_Phenomena | |||||||||
| キーワード | ||||||||||
| 主題 | Counterflow_Nonpremixed_Flame | |||||||||
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| 主題 | Edge_Flame | |||||||||
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| 主題 | Flamelet_Model | |||||||||
| キーワード | ||||||||||
| 主題 | Progress_Variable | |||||||||
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| 主題 | Combustion_Phenomena | |||||||||
| キーワード | ||||||||||
| 主題 | Counterflow_Nonpremixed_Flame | |||||||||
| キーワード | ||||||||||
| 主題 | Edge_Flame | |||||||||
| キーワード | ||||||||||
| 主題 | Flamelet_Model | |||||||||
| キーワード | ||||||||||
| 主題 | Progress_Variable | |||||||||
