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密度変化を考慮したモデルによる部分予混合雰囲気中の火炎の燃え拡がり解析
http://hdl.handle.net/2237/9383
http://hdl.handle.net/2237/9383ade69cd8-44f2-490c-ab60-5513f00d1225
名前 / ファイル | ライセンス | アクション |
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JsMecEng73-736-2565.pdf (849.8 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-01-28 | |||||
タイトル | ||||||
タイトル | 密度変化を考慮したモデルによる部分予混合雰囲気中の火炎の燃え拡がり解析 | |||||
言語 | ja | |||||
その他のタイトル | ||||||
その他のタイトル | Simulation on Flame Spread in Partially Premixed Atmospheres by Compressible Model | |||||
言語 | en | |||||
著者 |
緒方, 佳典
× 緒方, 佳典× OGATA, Yoshinori× 山本, 和弘× YAMAMOTO, Kazuhiro× 山下, 博史× 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 | Flame Spread | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Solid Fuel | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Diffusion Combustion | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Gasification | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Flammability Limit | |||||
抄録 | ||||||
内容記述 | In this study, we have numerically investigated flame spread over solid fuel in partially premixed atmospheres, which may occur under poorly ventilated conditions, forming the combustible mixtures of oxygen and fuel vapors. The compressible model is adopted. For simplicity, the pyrolysis region is moved based on the heat transfer to the unburned solid surface. That is, the flame spread is determined by the motion of fuel injection area on the solid surface. To confirm the validity of our numerical model, experimentally measured temperature profiles of thin filter paper sheets are compared. To consider partially premixed atmospheres, methane is added in the ambient air by keeping the fuel concentration under lean flammable limit. For discussing the flame structure, the flame index is obtained to observe premixed and non-premixed flames. Results show that, the good agreement is obtained between simulated and measured temperature profiles. In partially premixed atmospheres, the flame spread rate is increased, with the expanded high temperature region. This is because the premixed region exists along the original diffusion flame, resulting in the increase of flame temperature to support the larger flame spread rate. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | ja | |||||
出版者 | 日本機械学会 | |||||
言語 | ||||||
言語 | jpn | |||||
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 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0387-5016 | |||||
書誌情報 |
ja : 日本機械学會論文集 B編 巻 73, 号 736, p. 2565-2571, 発行日 2007-12-25 |
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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/2237/9383 | |||||
識別子タイプ | HDL |